Lore has it that he started attending an art school somewhere in East(?) Europe, and after about two years decided he wasn't getting the education it was supposed to be delivering. He already had begun as a strong artist prior to that, but he quit and self-taught from there. If I'm remembering correctly, he leaned heavily on Internet resources and his own imagination.>>2870690>how incase feels about other artists using his puazi alien race
He's fine with it as far as fanart goes (pics related). Generally speaking, he's pretty laid back about his work getting redistributed and edited, as well as fan efforts.
However> a problem with me making paid content with it
That's a line he's not all that cool with. You'd have to get explicit permission from him if you wanted to go there. And, honestly, if you're good enough to compare to InCase, you might as well just do your own stuff. Consider doing fanart of his characters & universes, as well as other artists, that you post for free to build your rep. Creative storylines you want to pursue with other people's characters? Just develop your own and make your own stories for paid work.