Here are some close up views, as you can see this picture is incredibly detailed:
He also posted some "Clay Renders" I'm not up on my CG to know if this is a render done in a program like Maya or if he actually sculpted this...that's how good CG is now, I cna't tell if it's a render or a real clay model. Check out the detail:
A HUGE version of this image can be downloaded here.
But the guy also has a lot of other incredible stuff up on his CGPortfolio. Stuff like this:
and of course "Breaking through the ice":
I don't know if this guy is working professionally or not, but I hope so, he has a lot of talent.