As an aside, a thought that I've had is that not enough media has art within the art, or at least not good art. Art's one of the things that makes us human, after all, so it only makes sense that humans within stories should be making art too. But most of the time, when you get a 'show within a show', it's usually either intentionally low-effort in order to parody something else, or it's just not given enough attention to stand out on its own. There's two things that got me thinking about this: the sumi-e (墨絵 lit. 'ink picture') paintings, and the bounty posters. Having looked up some actual sumi-e paintings on Google Images, I can definitely see the influence of the movement in the ones made by Atsu, and while I'm not exactly a strong judge of such things, I think her paintings are better than Jin Sakai's poetry (he tries, though). As for the bounty posters, it's impressive how menacing they manage to look in monochrome drawings, while most games with a bounty mechanic tend to either use actual pictures of the targets or simply don't bother showing you, the player, anything like that.
I don't know, but what I do know is that those two things stood out to me. This game is beautiful, and it's not just in terms of environments; having these people actually make art, and not just the usual 'show within a show' sort of thing but actual good, high-effort art, is beautiful in and of itself. (Though I do expect to be using photo mode to capture a lot of those environments myself, like I did for Tsushima. Maybe I'll post a link to my 'vacation album' once it's done.)