I think that you are being unusually naïve by setting your score just from a photograph - I accept that is a bit of a game, set by someone else.
OK, playing under those rules, on appearance, I would give a 7. On appearance she would be a target barfine in most of the bars that I occasionally frequent. In fact the biggest mistakes that I have made is to choose what looked like a 9 or a 10.....they were the starfish and loved themselves too much.
That 7 could become a 10 (or a 4) before the night was out - and certainly before sunrise.