I know this is not much help, but none of them I would say.
PassionateBlonde has only one very poor picture as her sole picture on her profile. I immediately thought she was a PG scammer till I seen the feedback score, then I just figured lazy. And thus not worth the effort as she has not put in any.
naughty_but_nice_xx; the pictures are dreadful. The third picture where she is seemingly wearing the same dress pattern as the background wall paper she just looks evil for lack of a better description.
The middle one she looks bored, and the first really seems to excentrate her brow to a look like she has a large head.
Welsh_Brunette: The least worst out of the three, but still comes across as a lazy profile which just means possibly poor punt.
I am sorry for causing any of them offence, as they are invariably going to see this, but those profiles are bad.