I am intrigued by Believable3D's idea "Average girl. Not your average Poser figure". I'd like it a bit more condensed, but with the double meaning still discernible. Maybe "Not your Poser figure next door" or "Not your everyday Poser girl"? But the latter seems so obvious that I'd be surprised if it hadn't been already taken.

-- I'm not mad at you, just Westphalian.