Her proportions seem a little off as well, but yes hammer your anatomy. You need to really go over the human anatomy with a fine tooth comb. Learn everything you can about anatomy. Then take another run at it.
Hell, I can't see for s**t errors in my anatomy/proportions (according to graphs/charts/etc. everything is in order) :/ Could you be more speciffic please? Pretty please? ^^'
Well..to not make her suck..the first and foremost thing is to learn proper human anatomy. Practice drawing the form and shapes on paper until all the muscles and flesh and proper locations and placement are grilled into your brain. Then maybe try modeling. Learn to walk before you can run
It's a tough one. In reality it has many issues. If I were to crit one specific area, it would leave the rest of it out in the open. So the only fair crit I can think of is simply a blanket "learn more anatomy". But that's obviously not so helpful. The clue here is that you cannot see anything wrong with it. Which means…
Ok for the anatomy/proportions... First off. Remove the head and armor from the body and check proportions to a human female of the same build of your character. Not the concept art, but actual human photos. You can find good resources at 3d.sk if you don't have any reference already. Look at the image and your model from…