this picture is awesome, im actually drawing a sketch of zero right now and he's gonna be back to back with harpuia... the only thing about this pic is, he's got his saber RIGHT next to both of their faces haha, he needs to be more careful with that thing!
The background, I'd say, is fine because it really isn't something to pay attention to. But I can see it fine. (Though, this is a person talking with a screen almost on 0 contrast. I'm really nocturnal...) Nice shininess.