I'd like to pretend I'm a genius but that grin is the same one he has in the book right before he lights that scummy guy on fire for killing that little girl. Intentional, but not of my creation, Dave Gibbons is the man!
The happy face is slightly creepy... Cause ya gotta wonder what could make him that happy.... Although it isn't really his experesion... Boy that'll catch the bad guys off gaurd... Wonderfully done by the way.