I may have completed my search for the most unique and fun brain site. I've only just begun checking it out. Linda, I've looked at my portraits and it seems that one eye is dead center also. Haven't bothered to measure yet. Anyway check out Artbrain!
http://www.artbrain.org/index2.html
Kevin, your answer may be buried somewhere in this maze of articles. But for now, I have to go fix a refugee!