This is Luno's official ref sheet. I got this done before Sol (the tailmouth) became a permanent addition to his character, so decided that Sol can just camouflage himself until he wants to say something (normally nothing good).

Few interesting fact about Luno:
1. He is male. Yes I know how fabulous his hair is. (Some artists just draw him with a tuft which is fine by me. It looks better on Ferals and some chibi styles shorter.)
2. He is mute (likes to carry around a sign to communicate). Sol, however, loves to talk.
3. Luno can be cute, but in his own way he can be as much of an asshole as Sol is. On the other end, Sol can be a huge sweetheart when he wants to be.

This ref was done by  theangrymothbear
People definitely need to check his commissions out because his prices are insanely low for his quality.