Lore books eh you’re giving me ideas. Hard to justify spending budget on that kind of stuff even if you have money to work with… how would one even get one’s hands on a woodprint artist? You know, the chisel and printing press kind? Imitating it is going to be hard indeed and figuring out how to do it not worth for a couple of one-off images you could just as well do without so either generating from prompt or telling the model to re-paint an input image in that style seems like the obvious solution.

I think a similar rule applies as when it comes to code, and NIH syndrome syndrome: Whatever it is that is your primary focus you should write yourself, use libraries for the rest. If you write a shooter, you’re going to write the gunplay, but can take the renderer off the shelf. I you’re writing a walking simulator that happens to have a gun somewhere but is generally focussed on graphical atmosphere, go grab the gunplay off the shelf but write the renderer yourself.

So unless the focus of your game is rummaging through books in an ancient library, go use that model.