I tend to like puzzle games, but for whatever reason this just didn't click with me. Perhaps I don't enjoy action puzzlers as much.
Art, music, and sound is good. It seems well balanced and helps communicate the puzzles, not detract. The puzzles themselves have some interesting mechanics, but it's quite easy only 15 levels deep. Where it gets iffy is the precision jumps at times, I found them unenjoyable. I also thought it strange how you added a lot of fluff death spikes that don't effect the puzzle.
Looks like it's coming along well, keep at it.