Very nice. I think the best part about your creations is how well posed they are. You managed to capture the role of an insane psychopath very nicely there. And I agree, that background really brings out his brighter form.
Here is another lil’ creation of mine, Mystic. Your classic immortal sorceror who is destinned to aid the worthy. Placing no limitations other than you keep the color scheme, and the face hidden.