I love messing around on Artbreeder.com, and in particular I enjoy playing with their face visualizations. I got a character picture I kind of like for one of my main characters in my Daros book. Her name’s Brecca, and she’s 16, and in pretty far over her head in a tough situation. Not sure this picture is right, and I don’t want to mess with anybody’s ability to imagine the characters for themselves, but it’s fun nonetheless.
UPDATE: Nobody much likes this one but me. Here’s one that I like that seems to garner a little more support: