The face is a little too plain and smooth, give it more detail like age lines and what not, he looks more like hes a painting than a living human.
It's pretty good as is though.
EDIT: Holy crapsicles your good... Its exceptional now, but the BTN version seems to still be the old version, you may want to update that.
5/5 exceptionally well done, I may have to download it just for the sake of adding it to my archive.