A self made terrain posterised, twice copied at the same place, then once rotated by 30° and once by 60°. On all the same self made material: much specular with anisotropy, a bit of diffuse, some reflection and bump. Ambient light, specular and reflection by the AlienRoom_SC HDRI from 3 High Resolution HDRI Set 1 (available at Daz 3D). Some specular and a bit of diffuse by the sun. A collection of differently high cubes.