I wasn't sure what to expect coming into this game, but I was really impressed with what I got :) The art scratches the Fancy Pants itch, and I had a great time throwing myself at all the levels trying to work out how to get every star (which I can proudly say I did succeed at- 20/20 stars)
The level design was fantastic, I didn't expect it to be as good as it was. Solutions that felt incorrect ended up being paths to stars, and the whole ending sequence was a really cool shift and level callback- I wish it went for longer! I'll admit that I spent way too long on that star in the middle of lv6 before eventually working out how to get it- that bit was cool, albeit a little frustrating lol. I was considering saying that the inherent chance-ness of the physics was a negative- but the more I read about the game, the more I can see that it was probably intended, and to that end I don't consider it a bad thing. Lv4 seems like the only time that's a valid criticism, really, but given it's only one level that was probably thought of too.
You've already had people mention the music not looping, so I'll try to come up with other points! I think there could be a bit more guidance on where the missing stars are, maybe a little icon in the level select to indicate all the stars for a particular level have been found. I think that should be the extent of hints for the stars, though >:) The blue pulsating effect in the anti-gravity areas also looks really out-of-place, and broke the visual theme in the levels it was used in. Was it meant to be a watercolour-type effect? If it was, potentially lightening it and filling the whole anti-gravity area could make it feel more like a texture than a strange effect. Otherwise, I'm not really sure how to interpret what it was supposed to be, but that could very well be a me problem!
The whole game felt like a cool comic you'd see drawn by a kid (aside from the level design, I don't think kids are well-versed enough in puzzles)- and I really loved it! Again, terrific level design, love the art, overall really awesome game :)))