Well, I may be stating the obvious but since this is a Maya site geared towards learning Maya with loads of Maya tutorials...why would you think it's a photoshop tutorial? Anyway, it's a maya tutorial, using maya shaders, etc. If you want to learn it, cough up the amount for a subscription (which is pretty paltry considering what you get). Like Rage said, it's definitely worth it.
"Terminat Bora Diem, Terminal Auctor opus."