Hmm

S'all looking good until you hit the forehead. well, actually the face in this matter. It looks as if it should be on a 3/4 view perspective, but the rest of her face has been cut off. There should be a bit more of the other side of the face, then you can say you nailed it.

Now the background, Its simple, but it works for this piece. However, those top two clouds, i would smooth them out a bit more, since the harder edges stand out on the darker part.