How does a Tzeentch Cultist look???

Hey guys, I was wondering what people thought about this, I’ve been wanting to make a dnd character that’s a Tzeentch cultist or at least heavily inspired depending on how the dm feels about having Tzeentch be an entity,

Anyway, what do people think the most tzeentchy person is? Is it an old crazy sage with a long beard? More of a ‘handsome devil’ type warlock?? Or a middle ground of a stressed middle aged man with permanently wide eyes who is always on edge?? Obviously it could realistically be any depending on the vibe, but I do wanna hear what you guys think.