Quote Originally Posted by shinkarom View Post
Go read TV Tropes. Simplified, fanservice means "eye candy".
Anything else?
In fact, I can remember a perception of a female face, but when I try to see how this face looks like, it deforms.
No, it was not a term I'm familiar with. I know what you mean now that you clarified it, thanks. In futher answer to your question I usually associate the female form (inc. face) with curves, etc.
It probably is a difficult thing to master. The male and female faces would still (I presume) obey the rules of the 'golden section', etc. If your doing this via some sort of 'hypnogogic state' then that state is very fickle and difficult to control.