It makes me think, "Why don't wizards have ST 5 or higher?" After having carried around the new 8th Hardcover rule book, I've come to the conclusion any one who can hold a massive Tome like that up with one hand, and I have no doubt your Wizards book would be heavier than the 8th edition book, should have the Strength of a Giant! Looks good, I especially like the book.
I'd say the beard, hair, and face need some washes to give them a bit of definition. There is no definition them and they look a bit unfinished.