Actually, I think skinny can be much more of a "character" and conveys more evil to me . . .

I think it depends on what type of personality you want to give him. Is he a strong heroic orc warrior? Then go for muscular. If you want him to be evil, I personnaly think skinny then makes the better character. I also think we have seen so much of the Freak-type muscle buold that it is the equal of  the big boob heroic girl in chainmail. Why not try something really unique so he does not get lost among the crowd of other body builders?

So, I guess I vote for skinny. That is my 2 cents.

Great work! I am very impressed!

Tim