All of the grass is instanced from a master foliage material. The grass uses the FuzzyShadingGrass node with vector inputs that I can control with any of the instanced materials to bring up details or reduce them. SSS, albedo, roughness, specularity, etc are all controlled via a similar process. I keep tweaking the values…
The stones are meant to be leaf piles. I noticed how bad they were looking as well, so I've just added a depth node to the material to get them to blend in with the terrain a bit better - thanks for the feedback! :) The white things in the middle are actually spraypaint cans. I took them out from that spot. There's a bunch…