I know this site has been mentioned in the past but I'm only mentioning it as I would imagine that there are (hopefully) a lot of new members that may not be aware of it.
http://www.pictriev.com/
I can only go off my own experience in that my femme face(s) that I've uploaded gave me results in the high 90s (%) for femininity and my normal male face gave me high results for masculinity.
I know it's only a bit of fun but it certainly makes you feel good.
