I actually made a webcomic with a similar subplot 👀
It’s a yuri prison arc where one girl has a taste for blood, and another is extremely depressed—they form a codependent relationship 😳
I think every artist should try developing their own world and characters instead of focusing ONLY on fanart because you’ll have something that is ultimately your own brand!
Fandoms come and go but your own ideas does not fade so easily and can only develop over time