This is fantastic. Wonderful mechanics. This may also be my favourite look on any game in the jam I've seen so far. The music is super relaxing and the puzzles are fun.
This game has such a great premise and art style. I think if you wanted to develop this further, the only things that it would really need are remappable controls and some slight tweaks to jump height.
Edit: the game is so good that I forgot to mention that the letters on the tutorial text should probably be white so it is easier to read.
Excellent work!