specially like the bend curved sides of the chest - gives it a more dynamic look (less iso-like look).
There's so much booty there it's almost against the no pornography rules. :D
The only flaw I see is the fact that those white balls seem to be floating in such shape and shading. I don't know how to fix that, but it does seem.
Besided that only mistake, the piece is perfect, 5/5
This looks really cool, and the shading and aa is very well done. Nice work!
PS: the preview image looks very wrong...like something else...