He gleams with mischevious and malicious intent! The way you have painted this one reminds me of an old fashioned silhouette except that the character looks right a you and not off to the side. love it!
I'm thinking about this in terms of a photograph... its such a posed image. not sure about whether he means to look mean or if its simply a matter of genetics. That's his face, like it or not. you're either going to be repulsed, or see past the accident of genetics that led to the expression and make friends. kind of like a cat. a lot of people look at a cat and see an evil expression that doesn't really exist, its just how their face is.