This one was fun! It involved more painterly stuff than usual XD Anyway, this is the Black Rabbit of Inle, the spirit of death for all rabbit-kind. Though he looks terrifying, he's not evil. He merely does his appointed task, bringing death at its appointed time. (Not that rabbits aren't scared of him) .
I did this in Photoshop, partly using smoke brushes I've had for a long time, and never used until now! I can't remember where I got them...some free Photoshop brush site. If you know where these come from, please let me know so I can credit them!