I like how you only drew half of the face, I always get the feeling of mystery when I look at these kinds of pictures, and it makes it interesting because it lets the audience fills in the blank space ^_^.          
         
I like the glint of the eye after you gave shadow and lighting to this character, it speaks to me of a subtle emotion that people make in the movies when they actually feel a lot but they don't show it.          
         
-upvoted-