just to give an idea of the incorrect proportions, here is something similar:



The problem with your proportions, is that the legs, neck, and thigh are too big. The neck just needs you to replace those two lines coming from it to look right, but the thigh and legs are massive. Her front-facing foot is also drawn a little incorrectly. Because her foot is flat against the ground, the point in which her lower leg ends and her foot begins is too high. Oh, and some of the shading is too thick, causing her arms to look more round than they really are.