I'm a little late to the party I know but all the same this is a fantastic shot. Such a stark shot playing on a simple contrast change requires the eyes to say a lot and there is no room for error in the technical shooting of the image, all of which are carried of really well. For me there is a little too much noise in the shot but I'm wondering if that is in fact something you have added or left in for personal taste??
With love of images cast witty...