I had to look up some art of the great man as he has, just a few hours ago, announced his retirement from MMA, going out on top as the unbeaten, undisputed champ. I think this is captures his spirit perfectly: Proud, strong and confident but not arrogant, flashy or obnoxious.
My only criticism is a minor one. His body hair doesn't really look like hair to me. You've done a good job on making his muscles look defined but the body hair looks a little flat, kinda stuck on if that makes sense. But again that's a minor critique and just my opinion on a small detail.
I really appreciate your take on one of my favourite athletes ever, not just in MMA, but in any sport :) Thank you and here's to the Undefeated Living Legend!
Cheers