I like how you have so many different mechanics for your puzzles! Also, I think switching from a large world to bite-sized puzzles works quite well and was a good choice. My only complaint is that the mouse controls feel a bit sticky and it's hard to control the piece exactly like I want it to. In most of the puzzles a small mistake lik this means a complete reset. But I'm not sure how to improve it with the current mouse only limitation.
Very solid game overall, and the puzzles are nice!