I loved your art. The emotional contrast between the world below and the haven your fellow winged beasts inhabit serves the character's fear of being condemned to forever traverse downwards.
Gameplay feels like it suffered a lot. General locomotion is clunky. I felt like I had little control over the flying ability and kept getting stuck in the ceiling.
The subversion at the end where you return the way you came but with the flying mechanic to change things up was a nice touch.