I'm just alittel one who try to learn this art ,i see your work is very wonderfull ,u have nice way to apply the humman skin , i wish u to go forward .

That's a pretty good representation based on the cuts, sculptures, and portraits that are available of him.

Very well done, much better than I could do, but I must say that the bumpmapping on the face is a bit high, perhaps an increase in the texture resolution would fix the jitteriness? Also, the creases on his face, namely his chin, seem a bit..I dunno, deep to me, it seems unbalanced to the rest of his face somehow. And his nose crooks way too much, almost like he could easily touch his tongue with it :P. But other than that, I like it, good atmosphere setup. :)