Greg Howard
Greg Howard has been about on eBay for quite a while and has quite a distinctive style.
His artwork is almost photo-realistic, and his renditions of Vampirella tend to feature faces of famous models and celebrities. Though the faces don't always look like Vampirella as in the comic books, the art is certainly breathtaking with it's detail.
Regrettably, I'm don't follow the vagaries of the jet set so I have no idea who most of the faces belong to.