Graphically, the art is beautiful, but the gameplay itself can be a little annoying. Unresponsive and slow controls severely hurt what would otherwise be a total top contender for winning based on even the art alone, but it's nothing that couldn't be fixed quickly after the jam. There are some GREAT ideas in there, though!
The flying is just awkwardly designed - stop and go style controls don't really work for this kind of thing IMO. It would have been nicer as hold-and-release. The music was pretty okay, although it got super grating and tedious after enough time.
Overall, I think it's a game with amazing graphics and a lot of potential, but one that's hurt by just a small few design decisions that unfortunately have a big effect on the gameplay.