I'm building an Orzhov Angels commander deck and I'd love to have basics that match the theme. What would you suggest?

I think I've found the Plains (USG 331 to 334), which depict Serra if I got that right, but what about the Swamps? I understand that they may not exist as Angels are overwhelmingly white-aligned, but maybe there's something?

I don't know how to search something this specific, I found about the Plains thanks to someone else who asked about them.

thanks in advance!