You did a great job on the overall shape and shading, but there are a few parts that seem wrong to me. The hip on the left side doesn't look like it comes out enough and I can see like lines on the stomach, some of which look like they were part of the original sketch outline (like on the stomach). Also, the shading on the legs and left arm look like squiggly lines. Still, I like the overall drawing (you drew the face very well and the pose is also good).