Fabulous picture. I don't know any of these characters, but the artwork is beautiful. Hades' hair is indeed beautiful, I love the glowy blue parts, and the conniving and haughty gleeful expression on Eris's face. Great work!
I only knew two of the characters; Pitch Black from Rise of the Guardians, which is actually a pretty good movie. And I have not seen Hercules since I was very, very young, and I'd never even heard of the other movie. But it was still pretty fun to draw.