lighting is too "front and forward" which has created the strong shadow on the wall. You could try buying a plain plack foam board (they are really cheap) and photographing the doll against that. This eliminates shadows and the doll's features would likely have shown up better.
It might be a good idea to try to photograph something more original for the next DPC challenge. The shadow is also rather harsh here- moving the subject away from the wall and not using flash might help. Keep trying!
I would prefer to see a close-up of a specific feature of/on the doll. Maybe see a study of the contrast between her smooth face and unruly hair. There isn't much to this shot as is. No character to the doll. Maybe do something more interesting with lights, if possible.
There is a harsh shadow on the wall which can be avoided by placing the subject several feet from the wall. Also this is very over sharpened - the dress and the hair particularly. Because of the fine texture of the dress it lends itself to oversharpening. Being aware of the textures of thingss when you take the shot can help. For example, knowing that this dress would not tolerate sharpening very well, I would have ensured tack sharp focus on the face in camera, so as not to have to rely on post processing. 4