The first person to comment as already pointed out a good lot of the proportional/anatomical problems, so I won’t comment on those. But what I will comment on is her feet, eyes and skin.

The feet are undersized and the heel of the foot looks to be broken. They should be roughly as long as the face is from hairline to the bottom of the chin, even longer if the woman is taller then normal height or if it’s a man. The heel of the foot has bone in it and the woman’s butt is mostly fat, so the heel of the foot will always retain its shape and the fat will always “mold” around the foot. We should be able to see the ball of the heel clearly at all times.

There is no light reflecting in her eyes. There is lots of light on her body, the apple and her hair but none in her eyes and it makes the image look very flat. A little off-white placed just under the upper lid would fix this.

The skin is a little to on the pale side, even for someone with pale skin. There is no pink/light red in there that I can see. There should be some pink running across her cheeks and nose area, some in her fingers (Mostly the tips.) and in her toes, and then you should have a lighter pink (Lighter then what you would use for the face, fingers and toes.) running in-between the shadows and the light of the skin. A little pink in the right places brings the skin to life and makes the body look warm instead of dead cold.