Correct solutions
The Bad Beginning
We Are Lem-Bob-Omb!
Lemming Falls - You used the digger correctly, the rest is open-ended.
Lemstones - Well done, using the right side requires more precision.
Cloud-Covered Stalactites - It was like watching my own replay! This is the solution I'd like to enforce.
The Strange Relics of Lemnos - Finally, the intended way to solve this talisman! Well done!
It's a Kind Lembourhood
Minimal Design - Identical to my solution in every way.
The Italian Job
Pagoda St.
Standard Test Chamber - Digging the middle block to make a path for the climbers is what I intended! Glad to see a replay solving it this way
Voltaic Mocaics - Nice sneaky miner on the right side in your 100% solution You used so many builders!
What Happened in Sovogda?
Iron Industry - Great solution, virtually saving one extra lemming!
Spring Break - Coll 100% solution! May become the new standard for this level
Ancient Crash Site - Perfect solution! Yay

Backroutes
Emerald Cave - This is a bit embarrassing I mean it's not far from the intended solution but I didn't see it was possible to solve it in this more simple way.
Better Run for Shelter - Similar to JawaJuice's backroute, the same fix should prevent both.
Clumps - Nice builders wall! But yes, putting walkers was obviously a bad idea.

Alternative solutions
Training Day - Your solution it similar to Guigui's. Not what I intended but it feels legit.

Correct solutions
The Bad Beginning
Training Day - Your solution is what I intended
We Are Lem-Bob-Omb!
Lemming Falls - Spot on! You used the basher to delay the other worker the same way I do.
Lemstones - Nice use of the blocker to save a builder, making the bottom part easier.
Cloud-Covered Stalactites - Very similar to my own replay, only you used an extra basher
The Strange Relics of Lemnos - As for Icho: well done! This is the intended way.
It's a Kind Lembourhood
Minimal Design - Seems like unnecessary sacrifices, but your overall solution is good!
The Italian Job - No need for the miner canceling trick, but it's ok to use it.
Pagoda St.
Voltaic Mocaics - I tried to make the setting of the builders and miner easier but it may be too hidden to notice: you can use the horizontal notches on the pipe as landmarks. From the second bottom noch, set a bomber and build to the right. From the fourth top notch, set a bomber and mine.
What Happened in Sovogda? - This level is mostly open-ended, the falling bomber at the beginning is what I intended so it's nice to see it here!
Iron Industry
Spring Break
Ancient Crash Site - As for Icho's: perfect solution! Well done  

Backroutes
Emerald Cave - Same as Icho's solution! I will fix this.
Better Run for Shelter - You used the backroute I found a few days ago, and I don't really know how to prevent this. Will think about it!
Standard Test Chamber - You solved it exactly as JawaJuice and similarly to Guigui. Demands more precision than the intended solution but takes a shorter route, too.
Clumps - Walkers, walkers, walkers

Calm 2 - Training Day Nice one!

Calm 3 - We Are Lem-Bob-Omb! Personally I'm not a fan of excessive bombing levels, but the challenge talisman is still quite interesting nevertheless!

Calm 4 - Emerald Cave Another great talisman! Interestingly enough, this one took me some time to figure out, though apparently I was already on the right track with turning the second Lemming around earlier by building into terrain but simply didn't realize it at the time I thought the first Lemming to build across the first gap would be able to do a lot of the work before the others arrive, but nah, turns out it's not possible without going over the total skill limit.

Calm 5 - Better Run For Shelter Wow, I really love those bombs pointing down indicating they're falling from the sky that you put in the level Reminds me of that one meteor level from Apjjm's Lemmings Quartet pack. The first level in which I got the talisman on my first pass even though I didn't open it up to see the requirement Looking back, I definitely could had easily used just 4 builders here, though I think the talisman isn't possible without that digging immediately upon laying down a builder brick so that he can build to turn around trick.

Calm 6 - Lemming Falls I went down the corridor before the gap, but looking back at the level I can definitely see the first approach I tried also being viable, as I could had simply make the splatform for the others with just one climber by having him build once he dug out all the terrain in order to turn.

Also, as an extra challenge, I now see there's even a no digger solution and hence the talisman could possibly even be changed to that in a future update!

Calm 7 - Lemstones The second level which I got the talisman for on my first pass, but that's because I'm one of those Lemmings players who loves going for save all solutions or if that's not possible then to save as much as possible As a matter of fact I pretty much went for save all's as much as possible on my first pass of these levels and sometimes I was lucky that it's also the talisman requirement. Think I even tried it on the PimoLems version but didn't succeed? It's probably not possible to save all on that version of the level anyway, but I might be misremembering.

Calm 8 - Cloud-Covered Stalactites Aha, I thought the talisman was no blockers, only I ended up using one on my first pass because the timing didn't work out the first time for me. Really good one here! This one's even better than the PimoLems version especially as it's a builderless one and that tends to be my favorite level type in the game! Not only that, it's far more interesting with just blockers and bashers.

Calm 9 - The Strange Relics of Lemnos As already mentioned, this was my favorite level! This reminds me of one of your first rank Fiat Lem! levels that had lot of bashers. Well done here, definitely a far better level than the PimoLems one!

Calm 10 - It's a Kind Lembourhood Aha, no diggers here in contrast to the PimoLems version which was an X-of-everything in all classic 8 skills. Definitely an easy talisman, though still have to be careful as skills run out quicker than they appear despite having a huge amount of miners and builders.

Calm 11 - Minimal Design Once I realized that you can lose up to half, the talisman wasn't so bad, though it's definitely still a challenging one to figure out. Nice one nonetheless!

Calm 12 - Ancient Crash Site Hardest talisman by far, though I kind of figured the bashers needed to go in the middle sections fairly quickly and hence the hardest part for me was figuring out how to get the crowd over there by going to the right at the top. Indeed, I kept thinking to mine through the emerald that connects to the ceiling through to just the two short ones immediately to its left while building the crowd to get over the first two. However, this then leaves the problem of the climber being stuck in an infinite loop and hence you save all but one, which is no good for the talisman. Took me some time to see that it is indeed possible for the miner to go all the way to the first two emeralds as well while allowing you to save a builder to turn the climber so too can go to the exit along with the others. It's probably a little too heavy on the precision with the miner, though the builder/miner combo always is.

Calm 13 - The Italian Job The funny thing was that my first pass had me go for a diggers only solution while going for the save all. I totally laughed upon seeing the talisman requirement because it was the complete opposite of what I attempted! This one's quite an easy talisman to figure out and much easier to execute than the diggers only solution I tried even though canceling a miner with another one is itself timing heavy. Nice level!

Calm 14 - Pagoda St Another one whose talisman isn't too difficult to figure out, though just like Calm 10 skills do run out much faster than expected. However, using the diggers wisely will help even out the miner and builder usages. There's that fire in the rings just like in the PimoLems version of the level!

Calm 15 - Standard Test Chamber Nice level whose talisman can be somewhat challenging to figure out but it wasn't too bad for me. Kind of helps that I've already seen this trick before in a few other levels. I did try going through the bottom, but I quickly abandoned that approach upon seeing that someone needs to go over the top to dig them out the far left side, which would mean more builders and more losses than you afford for the talisman.

Calm 16 - Voltaic Mosaics The third and final level which I got one of the talismans on my first pass, but again that's due to me going for save all's as much as possible when playing Lemmings. The one miner talisman is far more challenging but it's still not too difficult thanks to the very lenient save requirement. Also a remake that uses a NeoLemmix skill.

Calm 17 - What happened in Sovogda? Not familiar with what the reference in the level title is. That's a really nice sun at the top of the level, if that's what it is Took me some time here to figure out the talisman, but once I realize bombing a faller which frees up a bomber that you otherwise would use to get into the first open window at the start, it wasn't too bad. First zombie level of the pack from what it appears.

Calm 18 - Clumps I can up you on the talisman here, as I was able to save all but one I do believe the PimoLems version was a builders only one?

Calm 19 - Iron Industry Wow, this looks really amazing design-wise! Another level with NeoLemmix skills. It was hard for me to tell what the pickups here were. So, looks like it's not just you and Guigui. The talisman is a bit imposing, but it definitely makes it clear that getting the pickups are required and so isn't as hard as it appears. The challenge then is to figure out how to get them.

Calm 20 - Spring Break Really love the talisman here! Definitely reminiscent of some Pickaxe levels from PimoLems that made very good use of the miner skill. I originally got a save 98 solution and hence beat the requirement by 1, but I quickly went back and improved it to 99. Looks like Icho got me beat here by getting a save all. Darn it! However, I think I can see how it's possible and that it simply requires me to mine at a different spot at the top on the left side of the level.