Really cool. I loved the art style and music and think they complement each other and the game very well!
The last puzzle was decently challenging, so I think there is a lot of potential with this mechanic. I also loved how you introduced the mechanic, so that there was a natural progression in the puzzles. On the technical level, it is also really nice! Great job!
We made a bit of a similar game, a puzzle plattformer where you need to bug out of bounds, you can check this out too (if that is something that interests you)