Just like that, Amateur rank already completed! Here are my replays up to Amateur 40, as well as my feedback on the Amateur rank. Same thing, since it's mostly just tutorial (not really) style levels, I'll probably do the same thing here as I did with the Noisemaker rank, meaning I likely won't give feedback on each individual level until Amateur 29 and beyond.
Feedback on the First 28 Tutorial-Like Levels of the Amateur RankLet me start off by saying that it was a huge relief to finally start hearing the other music tracks starting in this rank. I got annoyed with the boring ONML music rotation very quickly in the Noisemaker rank. Don't get me wrong, you did a good job of remixing the 6 ONML tracks, but it was very boring hearing the same 6 tunes throughout the 40 levels of the Noisemaker rank. Indeed, I found myself rocking out to some of your original Lemmings music track remixes in the Amateur rank

In particular, I love the music for Amateur 7, as well as the following level, Amateur 8 (Very nice How Much is That Doggie in the Window? remix!

), Amateur 9 (especially the beginning which sounds almost like something from Tchaikovsky's The Nutcracker Suite, specifically The Flower Waltz), and Amateur 13. Nice job with these!

The rest of the tracks I was either partial to or wasn't a fan of. I would probably love both The Can Can and She'll Be Coming Round the Mountain tracks if they weren't as loud.
After I finished the Amateur rank last night, I headed over to the LWT New Formats topic to read the posts on the Noisemaker and Amateur ranks. Apparently I echoed a lot of Icho's feedback for the Noisemaker rank here for Old Formats, so you're going to see me echoing a lot of Icho's feedback for the Amateur rank as well.
In contrast to the Noisemaker rank, the tutorial style levels in the Amateur rank were more enjoyable and weren't nearly as difficult, and the difficulty isn't all over the place. At least after the first 2 levels of Amateur, which I felt were difficult in their own way, although the former not as much as the latter. For Amateur 1 -
It's a Long Way to the top, it is a bit difficult to see that 4 stackers is sufficient to get over the first wall. Even if it's difficult visually, I guess it's very easy to deduce that stackers must be used for that, based on the skillset, since 2 builders is obviously nowhere near enough to get over the first wall. Then again, it's always difficult to tell how many stackers are needed to get over any wall, especially since most of us are used to using builders to get over walls.
For Amateur 2 -
Timber (It's going down!), the only difficult part is the leftmost entrance. It's not easy to figure out how to delay the lemmings long enough for a worker lemming to mine the tree obstacle before anyone turns back and drowns. The other two entrances are very easy to figure out. Then again, this is also the very first time I have played a level in your Autumn tileset, which means I need to get used to recognizing the objects but most importantly the trap, which blends in very well with the other leaves, although I correctly suspected the bottom one on the left since it really stand out, even if the top trap took me by complete surprise, since I have never played this tileset ever.
After the first two levels, then I say we had a long stretch of fairly easy levels. Amateur 3 -
Walking on sunshine will likely look impossible at first glance for most, but then I looked at the number of lemmings in the level, and with two hatches, that means 5 out of each, hence the 5 swimmers. Also, since you later teach that the water breaks falls with Amateur 12 in the pre-text, I'm wondering if these levels should switch positions. The only problem here is that this would break the already neatly placed levels according to movement of skills for the first three levels (up, down, and horizontal), so unless your intention is for the player to figure out that water always breaks falls, I would say this can be a huge step up in difficulty for the less experienced players. Luckily, if the player manages to figure that out, the rest is easy.
Amateur 8 -
Who let the dogs out? is quite a difficult level and I would even say is a huge step up in difficulty compared to the previous levels of the rank. It's not easy to figure out how to navigate the terrain and around the dog traps with the extremely restricted skillset. Truthfully, the missing disarmer was the very first thing I noticed in the level, so naturally I scanned the level to find the disarmer pickup. Surprisingly, I couldn't spot it myself, so at first I thought you were trolling and made an error for the level. I did suspect that it was the mound next to the last dog before the exit, but I wasn't certain. It should be obvious to you that I resisted turning on CPM, and I played the entire level without the aid of it. Indeed, the "boing" pickup sound took me a bit by surprise after I passed the mound I suspected where the pickup was. I then rewinded a bit and took another quick look, and I finally did see the disarmer icon in the mound. Quite well-hidden, if I do say so myself.
As for the level, I got to say that it definitely shouldn't be a surprise that indeed there are hidden traps in the dogs, particularly since the pre-text somewhat hints at it. It's also as you say, your animals are hungry for lemmings. I got to say, though, that you did a great job of depicting dog poop at the barrel, and when the trap went off, my reaction was, "Eww, the dog pooped on the lemming and killed it!" There is also some kind of trap that sucks lemmings upwards in the first and last dogs that I encountered in my solution when you get to its mouth. I got to ask, what kind of trap is it that's sucking the lemmings upwards? Especially since the lemming immediately gets sucked up once it steps on the trigger area. Obviously, it's to give the impression that the dog ate the lemming, so I thought that was fun to see. Above all, great looking level!

I say Amateur 13 -
Ayo Technology is a pretty difficult radiation level. It's definitely not easy to work out how to manuever the lemmings with the radiation coundown to get them to explode in the places that will get the crowds from either side up to the exit. The save requirement might seem very lenient, but even with the cloners it's pretty tight. Nice looking level though, with the depiction of the atom and referencing lemmings being blown into atoms with the radiation.
Amateur 15 -
Ring, ring! can also be difficult, but I say more tricky than difficult. The solution I came up with building into terrain to turn around at the end to bash the OWWs seems to be the more difficult alternative. I read your spoiler list on what you intended on this level after I had saved the rank, and indeed having looked at the level again, I say destructive skills going against the OWW is the much easier option here. Once again, nice looking level depicting a telephone with the number keys.
Amateur 16 -
Slide it in can also be difficult as well, especially with figuring out how to get the floaters home since they take a little longer to open up their parachute compared to gliders. I might had overcomplicated the solution tremendously though. Indeed, I just tried it again and saw that there are much easier ways to solve it than the way I did. This was what gave me a lot of problems on Hasty 6 of Lemmicks, and I mentioned that was the hardest level of the rank.
I think Amateur 17 -
Float is also another difficult one, especially with figuring out how to get past the flower trap and how to bridge the gap before anyone else arrives and falls into the bottomless pit. I didn't use the stoner, so I wonder what the purpose of it is. Probably means I also backrouted the level, but I'm not sure.
Amateur 18 -
Tears in Heaven is yet another difficult level and I would also say is a huge step up in difficulty to the previous difficult ones I just mentioned. The right crowd is easy, but the left crowd is quite difficult. It took me quite a while to figure out how to get all of the left crowd to the miner tunnel on the right side.
Amateur 23 -
Fields of gold is a difficult level in figuring out how to navigate the honeycomb and getting the right crowd up to where the left crowd can get up. My solution is probably quite fiddly and there are probably much easier ways.
Amateur 24 -
Wonderwall Not necessarily difficult, just tricky, in regards to getting the basher/blocker trick to work at the very beginning, but I was already aware of this trick and so this level wasn't as hard. Definitely for less experienced players it will be a very hard level. The one thing I didn't know about was
a digger turning around when dug directly on top of a one-way field, but I guess this makes sense since this is akin to digging and releasing a blocker, who has the ability to turn a digger in the other direction when you block in the digger pit.
Amateur 26 -
Like ice in the sunshine Nice slowfreeze puzzle that gave me a good struggle for about 10 minutes, so it can be difficult and is somewhat a big step up in difficulty, even with the very restricted skillset. Definitely getting the crowd down safely is hard, and also figuring out how to stop them from walking into the trap.
Finally, Amateur 28 -
Zombie is quite a difficult level to finish off the tutorial-like puzzles. Once again, compression for the win here and releasing the crowd at the right time to avoid infection. Before that, I kept trying to actually get rid of the zombie by making him drown, but I wasn't able to.
The other ones I didn't mention in the first 28 levels weren't as difficult and were enjoyable and more to my liking. In particular, I absolutely loved Amateur 5 -
Sugar Baby Lem (easy level and nice looking level), Amateur 6 -
Cliffs of Dover (nice puzzle and how there's two solutions, my solution spares all the climbers), Amateur 7 -
Join me in death (I still enjoyed this one despite the stoner staircase and repeated bombing/stoning, at least it wasn't to the extreme and done to death like it was in Paralems), Amateur 9 -
Greensleeves (nice, easy puzzle!), and Amateur 11 -
Whole lotta Lems (very nice puzzle, although I initially tried to get all lemmings through the pillar for a few minutes until I realized I was going about it the wrong way and that the several climbers provided had a purpose, and the miner placement and timing can be a bit difficult).
My favorite level of the rank in the first batch of 28 levels was Amateur 19 -
Holding out for a hero. Decent looking level and also a very nice, easy puzzle on top of it!

I also really loved Amateur 25 -
Radioactive. Very nice and easy radiation puzzle!

Lastly, Amateur 24 -
Firework I immediately thought of the nuke being required just based on the level title, especially since it does indeed look like fireworks from all the lemmings being applied a bomber skill with the nuke. This is one of the few levels that I have played where the nuke being required for the solution didn't escape me. For some reason, that one level in Lemmicks where the nuke is needed completely went over my head. I think this is the third level that has Katy Perry as an artist, so you're apparently a fan of her, as am I.
Ok, that took longer and I wrote a lot more than I thought I would, but at least the boring tutorial-like levels are done and over with. Now finally onto the open-ended puzzles and the more exciting stuff. The remaining feedback will be on the final 12 levels of the Amateur rank, starting with Amateur 29.
Feedback on the Last 12 Levels of the Amateur Rank, Starting with Amateur 29The rest of the rank lived up to my expectations of very exciting and well-done puzzles, and so luckily you managed to get my engagement level back up, and so I will definitely be playing out the rest of the pack with joy, unless I start getting annoyed with future puzzles that have stumped me, but I highly doubt it, since so far it's been looking really good

It's going to take a while, since I still have 240 levels to go, but I'll get through the whole pack eventually. In the final set of 12 levels of the rank, the hardest level for me was certainly Amateur 37. I still loved the level and solution, though!

Amateur 29 -
Seven Nation Army Very easy level to start off the open-ended puzzles of the rank after the previous 28 tutorial-like levels. Somewhat nice looking level too despite the minimal design in the middle.
Amateur 30 -
Georgia on my Mind Already difficult with the second puzzle level, but still not overly hard and quite a nice level. Definitely a nice departure from the standard block the crowd in and have a worker lemming forge the path by temporarily delaying/containing the crowd with a miner pit in both directions and bashing to the right before the lemmings get trapped in the windows. I didn't realize those flashing windows is just scenery. Also the flag pole being scenery and not solid. I'm not sure if it's the exact same in New Formats, but I definitely wished something was done to make the flag pole more clearly scenery and not solid. Great looking level too!

Amateur 31 -
The Great Indifference The 0 save requirement was what immediately caught my eye. Is that intentional? Upon loading the level I immediately exited. It's still a very easy level, so I might just go back and actually do the level for real later on.
Amateur 32 -
Ich und mein Holz Nice level with a great solution!

You, Simon, Icho, Nepster, or eric can translate the level title for me.
Amateur 33 -
Eagle Somewhat difficult, but still easy. Also a very nice looking level!

Amateur 34 -
Levels Easy 10-of-everything level despite the lose 1 save requirement, although can't be wasteful with your skills, especially the builders. I like how you included a level from every rank of the original Lemmings and put them together to make this level: Fun 1, Tricky 1, Taxing 29, and Mayhem 12. It's just like traveling in time in the game here.
Amateur 35 -
Black Polished Chrome This one was quite difficult for me, actually. I struggled with this for a good half hour, but finally managed to solve it. Definitely not easy to find an efficient path through all the obstacles with the extremely restricted skillset to reach the hidden (not hidden at all but in the context of the original Lemmings game it definitely would be hidden) exit inside the wall. For the exit, I kept not having a basher to access it. In the end, two bombers and a platformer leftover.
Amateur 36 -
Walk this way Nice puzzle involving a temporary stacker to prevent the glider from exiting and then later circling around to bomb the top of it from the right side! Probably my favorite among the final 12 levels of the rank

The only difficult thing is platforming so that only the glider makes it across so that it can circle back while the rest of the crowd can still fall down and get to the exit coming from the left.
Amateur 37 -
Shipping to Boston By far the hardest level of the rank but I still love the solution and level. Very nice puzzle with a bunch of tricks required!

Struggled for a good 40 minutes or so. The key here is realizing that it's possible to give the first lemming enough time to seal up the gap and losing only one lemming in the process by making the second lemming a bomber to contain the crowd. The level is still no cakewalk after that. Other tricks needed are bombing the second wall as the climber either starts hoisting or falls one pixel from the other direction, temporary 1 bridge for the next gap after that, getting up to the steel platform with a combination of a builder and a stack interrupted with a walker, and finally building to bridge the chain gap to turn around and circle back to the crowd to release them. The final builder can be used to get up on the blue square blocks platform. All of these required things make it a very difficult level.
Amateur 38 -
The Shocker Nothing special here and way too easy. Nice breather after the previous brutally difficult level.
Amateur 39 -
Japan Nice looking level that is somewhat difficult but still a really nice puzzle! I like how the radiation must be used to bomb the gray pillars but then you also have to figure out how to avoid the radiation traps later afterwards. A couple of skills leftover, but I'm guessing these are fine.
Amateur 40 -
God gave Rock n' Roll to you Very nice level to finish off the rank. Somewhat difficult and definitely not trivial despite the 5-of-everything skillset of what you're given. At first, I was wondering where the exit was in the level. I spent a couple of minutes digging through the terrain, as well as the guitar picks at the top. I then experimented and tried going to the very last guitar and to my surprise the worker exited. To be fair, this is the very first level in the music tileset that I have ever played, and so I was completely unaware that the vertical standing black guitar is the exit. It should also be clear that I didn't use CPM at all. I simply wanted the challenge of finding the exit without the aid of it

Also, for a while I tried to use the upper path of going on the piano keys for probably about a good 15-20 minutes before I then tried the lower route. I did try the lower route before spending time on the upper path, but I quickly abandoned it when I saw that you need at least two platformers to make it across the gap. Once I did come back to the bottom route, I quickly realized that's where the stacker can provide the few pixels of width to allow lemmings across the gap without using up another platformer, since three platformers are needed to get to the exit.
Most importantly, very nice looking level!:thumbsup:
For the Amateur rank, I recognized 10 of the songs by title
Overall, the Amateur rank was a huge improvement compared to the Noisemaker rank. It was still somewhat boring, but nowhere near as much, and the difficulty doesn't jump all over the place like it did in the Noisemaker rank. The Amateur rank definitely lived up to its promise of superb looking levels and well-made puzzles after the first 28 tutorial-like style levels. Indeed, I praised almost all of the final 12 open-ended puzzle levels of the rank, so that's certainly saying something. So, it's thanks to those levels (and some of the ones in the first 28 to an extent) that managed to get me engaged and hyped up about the pack again.
I'm definitely looking forward to seeing the rest of the pack and finishing up the whole thing! 
I think from here on out, I'm going to post with my replays and feedback when I get to the halfway point, ie, after 20 levels. As I said before, 40 levels is just way too much to write feedback on all at once. 20 levels at a time should be much more manageable in terms of how much time I waste writing my feedback. Indeed, that's exactly what I did with United, although I sent replays to Icho whenever I got truly stumped, not necessarily at the halfway point, although I did that too!
Onward to the Professional rank!