Hui, finally jumped onto the train of material studies :)
Big thanks to CynicatPro for explaining a lot of the technical site of shading in his tutorials.
The first volume of shaders includes a rock, brick, sand, water, asphalt, and wood shader respectively.
I hope you'll like this series :D
More pictures of this project with better resolution on my ArtStation: https://www.artstation.com/artwork/1BGv2