Hmm...well, youv'e got a couple basic issues going on here, but nothing a little practice won't fix. The hair looks good, but for starters, check out that face shape. See that lump? Bye-bye, lump. Also, the lips and the nose seem a little misplaced- they don't slant with the rest of the face. Pretty good perspective on that one arm, the other seems a little... bone-less, though. That'll improve over time. Her body's a tad bit funkeh, too-- the hips are too big or the chest is too narrow, one or the other, but they're disproportionate to each other. Good efforts with shading on her legs, neck, and chest. All in all, with some more shading and practice on anatomy, you'll get good soon! Nice job.