Yeenoghu, Demon Prince of Gnolls
I drew this image to supplement an AD&D adventure that I was creating. The being is from Monster Manual I, Gary Gygax: "Yeenoghu resembles a human in general form, but only at first glance. His head is that of a hyena, his chest is canine in form, his hands are paw-like, and his feet are pawed. Yeenoghu is thin to the point of being skeletal, and his only body hair is a mangy crest of putrid yellow from his head to his mid-back. Yeenoghu’s skin is a dead gray in color, and it is smooth. His eyes are lambent amber and large."