I don't think it's right to show her picture here without her permission and it's not appropriate to show any of the coworkers either. Confronting her is your choice, but that might lead to embarassment and an uncomfortable working environment.
The private nude pictures I took once were meant for just that. I worry endlessly at times that they may end up on the net. I hope they don't but if they do, I know exactly the person to go after
