I found the game really fun! The puzzles are well made!
I'm not quite sure the music really fits with the style of the game, but I like it anyway.
Also, I think I found some kind of bug when there's a block over the player's head and a jumper plate under his feet (as shown in the image). It's not really game breaking, the player just behaves weirdly (it shakes forever and gets stuck).
Overall, it's a very nice game!