160 big rocks for your environments. Each use a custom Ambient Occlusion.
Except the biggest rocks, all of the others use patterns you can tile more or less.
16 objects (FBX) with 2 UVs
Polycount from 1945 to 2635 tris
56 textures (Diffuse, Normal, AO)
2 custom shaders (Diffuse/Specular+AO)