To me creating a character in any game has always been closely tied to my interest in roleplaying games. WHen I come up with a charater I come up with a concept. What it consists of can vary. Sometimes I center a concept around a specific personality, sometimes there is a particular skill or playstyle I want to do something with, sometimes I'm just fiddling about in the character creation screen and find a facial expression or combination of features that gives me an idea.
For example, in one of my file in the original game a character was born from the following influences.
I was fiddling through hairstyles and found the giant affro hair on a male character that happened to have a moustache currently. In the background I was playing the sound track from some old Clint Eastwood western movie (cant recall the name). Suddenly I had this image of a gunslinging macho man with a huge affro in my head. That character ended up as a dual wand character (since they are more similar to pistols in how they are wielded).
That time my concept was of a male character.
Anyway for me it has nothing to do with trying to play something similar to myself, nor about what I find sexually attractive. I play what makes sense for the concept.
For example one of the female lizard faces + "hair" styles made me think of some sort of vampiric fairie dragon so I took that look and built a caster caracter with the zombie trait, focused around blood and poison magic.