For some reason, these are all female. Don't bite me.
Spoiler
I propose a different solution to the gender issue.the Second being a bit tricky. I friend of mine is looking for a picture to define one of characters, that character being an androgynous poncho wearing two weapon swordsman. He still hasn't decided on his characters gender (he is leaning towards female) and so its been mystery in game.
Needed
-androgynous
-poncho
-grim colors
Optional
-impossible to guess gender
-dual kukris or similar weapons
-murderous feel
Spoiler