Your main concern is anatomy. She's got T-rex arms. If you're meant to see less do to perspective, then give it perspective, don't just shorten it. She also seems to have a hunchback The face seem good relative to the rest. As Malor said, a highlight and a midtone would help, which would mean you need a lightsource, which you lack at the moment. her features are just stuck on at the moment, like Mr. Potato Head, show some of the muscle structure acting on her expression. And you've got a Schultz nose, show shape and structure, as in Malor's edit.