Okay, I had a go on these levels. They're very easy (as is to be expected for a first rank), but the designs are VERY nice!
Some comments:
- On the digger tutorial level, the time spent walking is quite excessive. It might pay to shorten this a bit.
- On the bomber tutorial level, I don't see why you included blockers? As I'm sure you've noticed, bombers explode instantly (without a countdown) on NeoLemmix (unless you manually choose otherwise in a Flexi-based player).
- Scarif-Slice is far harder than the other levels, and may be worth moving to another rank (or at least later in the rank).
- Saving 100% on "Building to Salvation" might be an interesting challenge for less-experienced players; or could be used (with a reduced skillset) for a repeat verison of the level.
- "Bashing to Safety" might also be a bit difficult for new players due to the need to judge where to bash to come out at the right point on a diagonal slope.
- On "Not Breaking But Entering", I think you might've overlooked something fairly obvious; not that it's a huge deal for an easier level.
- In general, it may be worth noting that you can change the width of a level in NeoLemmix (and thus get rid of the black space on the sides). NeoLemmix Editor even has a Shift Level option (under the "Edit" heading on the menu bar) which can help move the level for this purpose.
- Also in general, you've placed some steel areas which don't overlap the steel block exactly, thus causing terrain around them to be steel. Unlike in traditional Lemmix (or DOS), there is no need to do this. In fact, in NeoLemmix (and SuperLemmini, if you ever make levels for that) you don't need to place steel areas at all; you can just use the Autosteel option in the level stats config (which is enabled by default) and all the steel blocks will automatically become steel.
I'll send you a PM with my replays.