This stone face is inspired by the Thunder King Word of Wacraft asset created by Fanny Vergne: https://www.artstation.com/artwork/oOJLBW
I loved that stone face since the first time I saw it: this is my take on it.
Compared to the original asset (that I never managed to find in game) I decided to change the material of the 2 crystals.
The asset has been sculpted in Zbrush, modeled and UVed in Maya and textured with both 3D Coat and Photoshop.
As all my other textures the Photoshop file is pretty modular (through the use of Masks and Adjustment Layers) allowing me to easily change and adjust many different properties of the textures: Albedo, Normal and SRM (Specular, Roughness and Metallic channel packed texture).
I usually pack and export my textures in Photoshop taking advantage of the amazing "Expresso" exporter: https://minifloppy.it/portfolio/expresso/
Marmoset Viewer - Stone Face