Weekend Material practice.The helmet was made by Filippo Negroli(C 1510-1579),Milan.It is an unbelievable piece of art.
I copied it as a short tutorial of ZBrush and Substance painter. My friend Johnny Xiao
https://www.artstation.com/johnnyxiao
made the low-res topology and UVs.
Rendered with Blender Cycles.😁