If the "artist" (there is no artist, only the AI) can't be consistent enough for a fucking Ren'py ass visual novel, then they need to practice more.
I've seen some games on here made by people with *zero* artistic talent that tried anyway, and some of them are still great. If you have to tell ShitGPT to pinch off a steaming loaf of anime girls for you to stick in your generic zombie visual novel, then you're a customer, not an artist.
"B-b-but muh prompts!"