This one was all about using geometry nodes and material editor to create a fully procedural chinese landscape painting. The code is online for free, and you can find it (and some explaination of how the system works) here: https://medium.com/@shahriyarshahrabi/procedural-chinese-landscape-painting-in-geometry-nodes-blender-3d-6417403430e6
Some color schemes generated by the procedural system
3D scene on sketchfab, show casing a demo scene
3D scene on sketchfab, black and white version, show casing a demo scene