Nice concept, pretty original. On the illustration, i second what @dreamsequenz said about the cool light, i noticed you added it on the hand in your last post, i think it would actually work better if the cold light was instead on the body of your character; it would push the character back in the perspective giving more depth in your composition, while emphasizing the nice shape your character has.
Or maybe you could even get rid of the warm light on the character and rely solely on the cool light to define him, just a thought i am not sure it would work.
Another idea would be to have the light hitting him from the top left corner be more intense, like a highlight and letting reflections do the rest of the defining.
Or maybe increase the intensity of the light streak behind you character to attract the eye to him more
Just suggestions to experiment.
