Cool puzzle game, although I had a couple issues:
1) The character was pretty frustrating to control. The two main issues I found with the character control were that the character was too tall, so it felt like I was always hitting my head on stuff (I wish the character was the same size as it is when it's dead), and the other issue I found was a lack of leniency frames to jump after walking off the platform. When I'm playing a game centered around puzzles like this one, I shouldn't need to focus so much on making jumps and instead I should be focusing on how to complete the level (in my opinion).
2) The music stopped looping, I'm assuming this is a bug?
Other than that though, I thought the art was great, the sfx and music sounded really good, and the puzzles were a fun challenge. Good job!