It'll be the hair, especially red hair—red-gold sprinkles from hell. You also get this with metals near the skin. However, I've never seen it right in the middle of the face like that. I guess it's because of the hair overhang on her right—you might be right about the scaling though. But you said the glossy was 1-2000 (which I thought was very low), but it's 7000. With a very low specular that shouldn't be out of order, though.