Well, thanks for the comments so far everyone.
I’ve started in on the 3d model for the beast, which doesn’t seem to be coming out as good as I’d hoped. If things continue to go bad, I’ll just be doing a 2d rendering of the sketch.
The riders’ story is loose and incomplete, but this is about the jist of it so far:
Basically after months of starvation throughout his homeland, this creature called Zitar Bromicious went Hannibal Lector on his own people. After being captured, the muzzle was bolted into his beak, and his eyes gouged from his head. The tribe shaman also granted Zitar immortality, so that he must suffer for eternity. Zitar was then banished forever into the Cursed Outlands. While he may live forever, his body will not. He is forced to endure the pain of his body slowly rotting away to nothing, eventually being no more than a walking heap of bone. The beast he rides was won in a duel. He uses the beast to traverse the Outlands, and to haul anything he sees fit.