This is a LoRA for Illustrious backgrounds inspired by Roman architecture and frescoes. It isn't historically accurate but it's as close as I could make it for now. It can get a very yellow/orange tint in the indoor scenes, being descriptive about colors and lighting can help with that.

It shouldn't change the character style from anime/semi-realism checkpoints, I designed it to be flexible there. I'm not sure it will work well in a photo-realistic checkpoint though.