Very nice interpretation of the theme!
With some extra polish and a full set of levels I could definitely see myself sinking a lot of time into completing this.
Some feedback regarding the SFX, it would be good if you put a low-pass filter on the “bump” noises, because right now they’re really sharp and detracts a little from the overall chill experience when you make contact with walls (which shouldn’t give strong “you made a mistake” player feedback).