Well, it's not /as/ rough as the version in my scraps folder, albeit the color was rather hastily added. I'm not all that happy with it, overall, and it's kind of an overblown sketch, but I'm tired of looking at it. There'll probably be a better version eventually.
Anyway, Thirteen is one of those Jenova-addled guys in black cloaks you see meandering around in Nibelheim going 'Re....un.....ion......" and drooling on themselves. Except with Jenova dead at last, he managed to get his brain back (mostly, kinda, sortavaguelyforthemostpart) and is at least aware of his surroundings in proper fashion. He's supposed to look like Sephiroth with a shaggier haircut (though ~chaemera thinks he looks like Brad for some reason), and apparently has raided Squall's closet sometime in the recent past.
I'll probably end up changing his outfit, but for now, this will do.