Nice to see another tileset from you!
The graphics look really gorgeous! How come there are blocks with the numbers, arrows, smiley faces, etc.?
The spike animations are very cute, something I've never seen in any Lemmings tileset that uses spikes before!
There are three typos I've noticed:
1. The pre-placed lemming is a "No Effect" object (as I've seen in the editor).
2. When the hand trap gets the lemming, the color of the lemming's hair changes into a light-blue color (seen in picture below).
3. You'll also need to add one-way down arrows (this should also apply to the Glacier tileset).
Once you think the tilesets are in a complete state and there are no major typos, you should consider submitting those to the
NeoLemmix auto-downloadable list! You'll have to change the name of the tileset in order to conform with the NeoLemmix rules though (e.g. zanzindorf_sKiwi.dat, zemmings_sKiwi.dat, etc.).