Bleak light and great shadows around the eyes. From the first glance you get the feeling that he's an evil-doer. If you shaved his goatee and put on a top hat I'd say it's Scrooge^^ (Sorry, but I'm all in a Christmas-mood right now )
One of my favourites when it comes to the usage of light, which gives it a cold feeling and support the character, who looks strict and absolutely not amused. It is also very loose at some points, which I think suits the overal compsition very well.