Awesome work, man! I'm just going with my gut here, but I think this is one of the coolest topmod models you've made. Also I was surprised to see that it was maxwell rendered. It looks decidedly vray-ish to me.
man look at all these people and their two-word comments *blast'd*
Anyway, the spirals (not quite correct word but I can't think of anything better) are amazing as usual, everything is so intricate! And I especially like how the colours aren't like, pure greyscale, that hint of brown really makes it feel a lot more natural.