Your SB800 isn't contributing anything to the photo. If you wanted some separation you should've turned it up a couple stops or moved it closer. Placement would've probably been best to the right just behind her. Nice shot otherwise, and in most cases 1 light is enough but her sweater gets lost in the scenery.
Also, there really isn't anything cool happening on the left side of the frame so you might be better off with a tighter crop.