Okay, this is none of your business. If you want to take up the useless hobby of trying to guess the bra sizes of random women, then keep it to yourself. Better yet, maybe after you take a photo like this one, you could just ask the woman what size bra she wears. You could tell her that you would be happy to print out the photo so she could sign it for you. Just a warning, it looks like she has some long sharp fingernails that I'm sure she will use to gouge out your eyeballs.