Kristof Dedene covered setting up nice-looking styled rocks in Blender.
Kristof Dedene, an artist who is known for recreating different anime and Ghibli-style effects in Blender, has recently shared a video tutorial on how to Ghibli-style procedural rocks. The artist covers all the needed nodes in Blender, discuss important maps, and showed how you can add different details
In case you want to do more Ghibli stuff, David from Lightning Boy Studio has a tutorial on how to create Ghibli-style trees in Blender. You can find it here.