DiffImg says there's something changed with the bottom of her cleavage and around the area to the right of the anchor in her hair. I can't see it comparing the two images with my screen resolution, though.
Going from the locations you mentioned, it looks like her outline on her right shoulder was slightly lighter in the original and is darkened here. At the bottom of her cleavage the outlines of her breasts and cat cutout stood out more than the fill for that area, looks like he darkened and cleaned up that area.
