I think the "incomplete" or at least "not-fully-completed" status of some features actually works well in the context of this crumbling world. I wouldn't like to have or see much more, not because it's not interesting but because I feel that you hit a delicate balance, suggesting the existence and the complexity of systems we don't actually fully use within the game as your world-building suggest the complexity of cultures you don't fully engage with, as the tileset suggests landscape features we are not fully able to understand... and so on.