I don't do a lot of 'rl' kind of roleplays, so most of my character art is, well, art. I've had artwork commissioned too for the real unique experience.

Anyway, my only bugbear with using 'faceclaims' is that people tend not to select age appropriate ones, actually. Unless these characters have super skin care, a mid thirties person shouldn't look like they're in their *very* early twenties.

I almost invariably use anime FCs, in some cases am willing to use other art (for example, for D&D campaigns) and it's not like I can't use description if I really need to. Nonetheless, in almost every scenario if an anime FC won't do, I am probably not going to be a member of that roleplay. Beyond just liking to use those FCs, they are one of the ways in which I can say "yes, me and this person share some common ground in viewpoint and expectations. I can more or less trust we are on the same page regarding what we want from the roleplay and how far the suspension of disbelief can be stretched".

I usually get them from google, and sometimes a site like zerochan.