I should have the pencils for my character sketch done tonight, will upload that as a placeholder until I have time to muck with color. As you'll see, it's pretty heavily referenced off the standard Pathfinder Magus pic by Wayne Reynolds. I thought about just trying to invert the colors on the skin for that, but I think Caytis (1) has short hair and (2) wears a shirt.
In terms of the background questions, I think I know most of those, assuming this fits the setting:
Was thinking that Caytis' parents may have moved to Sasserine shortly after marrying, or met there; in either event, they're there as a means of studying the Eye of Abendego. Possibly I could work in that they fear their being so near the supernatural storm contributed to Caytis' genetic-stew problems.
With the academy bit you mentioned, I think that works: his folks remain on the shoreline to continue their work studying the storm, sent Caytis to the academy hoping he could learn magic where he wasn't coming to it naturally, and when he washed out, he stuck to Cauldron, landed his job with the old wizard, and developed his connection to some of the other outcasts in the area, finding solace in the Inn Val's parents run, etc.