yeah, you could always use his image that comes up when you get him from a wish. Or one of his idle poses maybe, with some nice genshin impact scenery in the background.
you're very good at writing so I'm sure anything you write about - whether it's genshin or not, will be super interesting! (:
I'm indeed thinking of using one of his idle poses, just need to find a background that looks fitting. Probably somewhere in Liyue... Or Inazuma? Inazuma sounds more badass, lol. Maybe I'll try that first :)
Thanks for the compliment! Hope that if some day I start to write about maths it'll still be interesting. That would be a pretty major accomplishment LOL.