Tidbits: Left out so as to avoid making the ref look cluttered. One of these days I'm going to make a super over-done mahoosive complicated ref and stop adding these things.
1.) The red bits (Fur markings and eyes), as well as the tongue glow dimly purple in the dark, and brightly when using magic.
2.) Although it is visually stated, in the past some artists have sought confirmation: only the left ear-tip has the brown mark.
3.) the wings are based on seagull wings, thus it is rare to be able to discern individual feathers. They are also optional and would be attached low, behind the stomach.
4.) He is made of magic which normally has a wet-sand consistency but can be gooey and permits shape-shifting among other things.

Peculiar Abilities I'm still learning about.
1.) The diamond on his forehead is a conduit to what's "on his mind." So if you touch it you can hear whatever song is stuck in his head and vice versa if he's paying attention.
2.) He can perceive out of any part of himself that's currently purple, including the goo when he melts. So theoretically he could stick part of himself to a wall and serve as an impromptu surveillance camera... especially with the conduit ability.

NSFW version

If you have any questions feel free to ask.