Hi there,
Used Photoshop CS6 (pre-release)
Critiques are welcome.

Your anatomy is all over the place, I honestly can’t tell if it’s a human or not.
I would start over, and work with contour lines, and work out the pose. Are you working from photos? If so, could you post them as well?
I would start there, then we can help you with everything else, once the figure is correct. Don’t worry about color or lighting or texture, until you get the figure settled. You might also want to consider an environment as well.
This is an ambitious start, with the kinds of materials and lighting you’re attempting.
When you are working on your anatomy/figure, make sure you do not fall into the trap that so many inexperienced artists fall into. Read this thread for what to watch out for: http://forums.cgsociety.org/showthread.php?p=7242955#post7242955
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