No concept to post yet. Problem is, I've been mostly running through it in my head, haven't been able to sketch it out. I'll have something up soon enough showing the intended final posing. In the mean time, here is an update.
This will serve as his throne, which was originally described as having a vulture skin draped across it. I've decided to incorporate some elements that reference bird anatomy throughout and will take it further with feathers placed across the uppermost sections to create a dramatic backdrop.
The demon will be placed at the seat of the throne and captured mid meal with plenty of cadavers thrown about the ground. Blood from the discarded corpses will be seen trickling down to the crevice at the base of the throne.