First, graphic are very good. Particularly, I love the animations :)
The musics are very good too! Add some sound effect could be nice?
I wasn't able to reach the end of the game, I'm not good at platformer, and controls (especially the jump) are a bit frustrating for me (maybe add more air control? I don't know). Thanks you for the checkpoint :)
Good feeling of exploration and respect of the theme. Nice job!