Boy, have you got a problem! If you can find the original mesh(es), she's toast. But if you can't, there's no way to prove she didn't do it. It's very low poly in a lot of ways, but the feet, lower face and eyes are pretty high. Looks almost like a cut and paste job with enough mods to make it really tough to be sure. Is each eyeball a seperate object? Is there definition on the inside of the mouth? Are there teeth or tongue? Is there a place so that the mouth could be posed open if it were boned? All of these would point to a steal and rework of a Poser figure. Good luck.