I've just added Barbaro's head sketch to the Head-Winners set in HM3 as his contest winning prize. I think it's a good drawing but it doesn't come close to hitting the true bad-assery of the original photo. Dude's a straight-up super-hero looking guy IRL. If he's willing, I'll put the reference shot up at the end for comparison.
Edited to Add: With his kind permission, here's the original. Like I said, total bad-ass.