My characters now seem to be fighting for domination over my posts. ... Nah, I'm experimenting with how they would react to each other. Say, maybe if some of my OC's get enough of a personality, I could write a story about them! Maybe even with some other people's characters... OMG THAT WOULD BE AWESOME
When I'm coming up with OC's I do the opposite. I give them a personality first, then figure out what they look like.
I just take one small part of my personality, magnify it into a full-out personality (albiet a bit one-sided), and then design the character after I've worked out all the personality quirks and their whole story and stuff. And I definitely would like to write a fanfic with someone else's OC, possibly even a collaborative fanfic. Just...not right now. Perhaps in a few weeks. Or you know...whenever would work good for whoever would want to...
Well, Fizz got a personality before an image, honestly. Then I drew her upside-down and confused looking.
It seems I'm not the only one who makes art of new OCs right out of the block. I usually make loads of concept art of an OC before I use them, I'm currently working on one right now, but there are a few key details I've yet to get finalized.