Polymer City
Mr Chris Morrison sent in this pic of the cutesy Sheera riding the mighty Andrah. Mighty's the word...
RPG World
Furthermore, here's Cherry! Thanks be to Ian J for this'n. (He's got a few more pics in the wings, be patient kids)
Bathroom Enterprises
Her name is Mizarael, I do believe. This picture scares me for some reason. Talk to Jordan of Bathroom Enterprises about it.
Boy Girl Club
This is Jerome and Brian. And in fact, Brian drew this pic! I must ask you to contemplate the ramifications of this quietly, please.
PDI

And man, you should see their second pic!... This is Fosa, by Mr Scott Maddix of PDI.

Oh, the comic is by both Mr Maddix and Mr Anthony Port, I should remind you (thanks for the heads-up, lads).

Casey & Andy
Hell's underrated, really. This is Satan from Casey & Andy, by Andy Weir.
Not Gonna Take It
Why, I do believe I promised a Delegato pic back when I was promoting Lace on the Keenspace user mailing list! Lucky Kiwi happened to want to give me one, hoho...

Chucko Liang

Look, he's got a little button! Yeah, uh, this one's all crosshatched and crazy an' stuff. Thanks be to, uh, 'L.A.S' for this'n. I do believe he told me his actual name, but I've lost it. Just read the comic.
Midlands
Midlands! Yeah! Never read it. Heard of it though. This fine pic of Silth-Kaonthil is by Ben 'Rincewind' Riley. Is she as fiendish as the Discworld elves? Hell, ask Ben.