Does she want me back!!!?

ok heres the situation my ex girlfriend and I have been talking for a minute and, suddenly she and I was talking and she said that she heard that she about the little change that I went through saying that I sound different and such. So then she comes up and asks me if I can send her a picture of what I look like to her, and every since that day she has been pestering me about that picture. Why question why is she concerned about what look like, the girl has called me texted me and the like. My question is does she testing the waters to see if she wants to get back together or is it a ual thing