Japanese traditional architecture of medieval aristocrats made for Manga background images.
This model has grayscale and single base color maps for simple use of manga art-making, which will save your time to consider lighting. It is most suitable for ClipStudioPaint EX that has beautiful contour extraction scripts called LT Conversion of Layer. Their geometry is also available for game assets because of the clean quad mesh.
You can try the trial model: https://www.cgtrader.com/free-3d-models/architectural/other/trial-japanese-medieval-house-v1
Specs: Texture: Only single grayscale base color maps, these maps have a kind of shade baked from AO light path in them. 512*512 to 4096*4096px sizes. Geometry: Only quad mesh, Correct normal directions, Non-isolated vertices or edges, Non-Multiple Faces. Composition: All file types have a tree relationship among objects. Blend file also has a collection so that you can easily select them.