The Armadillos are from the Stanford Computer Graphics Laboratory (Stanford 3D Scanning Repository). Two textures from the High Resolution Terrains 1 set mixed with a curvature filter. They are standing on a shadow capture disk from the Hyper Textures Expansion set (available at Daz 3D). Backdrop and main illumination by the IllgrabenWest_SC_1024 HDRI, fill light by the sun. Experiment with curvature filtering.