Your pose is a bit wonky. Unless that staff is stabbed nice and deep into the ground she's gonna fall backwards
Knees together and hands on hips is a bit of a weird direction body language wise. I think pick your personality and run with it. Right now she's a badass on the top and a scared little girl on the bottom.
Biggest anatomy things to look out for: She has no back, her rib cage should extend out under the armpit. The arms are awkwardly shaped, too short, very flat. Her rear eye is too far across, and consequently her cheek is too far out, bring it all back in a few pixels. The rear boob is too far out in the same manner as the eye, looks like it's connected to her shoulder.
Take it easy on the hair shading, especially the highlight colour. Your contrast is way too high to be using that much highlight. A little sheen will serve you much better.