Opened in PSE 6, used Topaz Remask to separate the girl from the picture and put her in her own layer on top. Then I created a copy of the background layer to clone over her. You just need to use a small clone brush head and zoom way in and do the cloning from the outside in. This way when you put the girl back and rotate the image, you don't see any of her original image behind the straight one.
So once she was cloned out, I rotated the layer until it looked straight. After that I just flattened the layer and it was done.