The controls were a bit finicky here and there, as any jam game would be, but overall a very enjoyable game. I really liked the puzzles as well as the music. The interpretation of the theme was very nice as well. The art and shaders look well chosen and very pleasing to the eye.
The final level in particular I found to be very satisfying. It was that level where I noticed the star goes up and down with the platform, which is just such a nice little touch. I would certainly enjoy a whole full length game like this, albeit with a couple kinks ironed out here and there, like perhaps a way to highlight which side would be stretched. Maybe there's some kind of way to do it without having to go through and modify what looks to be quite a complicated shader.
Wait a minute, the credits don't seem to mention the music. Did you make it during the jam? If so, that's awesome.