To tell the truth, I can't tell one actress in Hollywood from the next without a cheatsheet, so it's not just Poser characters. Let's face it, Bette Davis wouldn't get cast in anything these days. You can still get some decent looks by just spinning dials in Poser. Get a basic skin mat, and mess with it. Find a few good outfits and change them around, paint on them, mix them up. Using anything just as it comes out of the box is no fun. Take one of those 'pretty' characters and make some of the features less than perfect.