because the area behind the girls head kind of suggests that there is some kind of movement going on there, and the floor as a sheen. I would make the "something" behind the door Movement such as wind, rain or even a light source. You could then introduce maybe a reflection on the wet floor or deeper shadows if you go with light.
I wouldnt be too worried about the anatomy, I wish I could draw that well.
just my 2 cents worth.