The warpaint is categorized as "costume make up", so that you can basically wear it with any other kind of make up, be it eyeliner, lipstick or blush. Blush tends to partially overlap the warpaint, but using the opacity tool makes it less noticeable. One recolourable channel, works for teens to elders, both males and females. I completely forgot to enable it for kids, sorry D: if you need, feel free to ask for a kids version, too... or to make your own! :)
As it often happens with make up, it will look slightly different depending on the face sculpt of the sim. Very low cheekbones mean a very low warpaint design, puffy cheeks will make it "curve" in some particular ways and so on.
Use and abuse at your own will, feel free to modify as you wish and, most important... have fun! :D