whoa, huge post. You should try as best as you can to post more often instead. That way you get more feedbacks. Most people will comment on every update but not every piece of art.
I like the perspective work in this one and how the vanishing point is her hand so it's the first thing I notice whether you intended it to be that way or not. Good way to create dynamic composition. I see an X-man, is that kitty pryde? Another thing I notice you do is that you seem to draw breasts, then draw clothings over them w/o changing the breasts' positions, so they look unnatural. Breasts may be farther apart in the nude, but if you put tight clothing on your female, the breasts will change their shapes/positions ( a tube top will push them up for example).