Thanks for the effort, guys.
I know exactly why it's so hard to find pics like I've been looking for: people draw what they play and/or want to look at. Most people play adult or at least almost-adult characters. And most guys want to look at women in revealing outfits, and or, see someone waving really cool guns and swords around.
Hence, the bulk of what we see for character portraits on the 'net is everything but 13- to 15- year old kids of either gender (but especially not boys), with or without the cool swords and guns.
Generally, even for fantasy, you wind up having to find manga and anime screencaps, and make do with that.