Totally minor feature: I was thinking of ways to control the wing animation since wings seem to have a will of their own and never stop. :)

1. When the player is in a sitting position (riding, on a chair etc), wings should stop moving, since sitting is a "more-resting" position than walking or standing still.

2. When using sneaking key (shift). Sneaking is meant to "help players hide from enemies", so moving parts would make players easy to spot.