Medieval Back & Forth - No more dragons' post

No more dragons' post (Challenge-Medieval: Back and Forth)
6 materials with vertex color, vertex alpha used as metal mask; custom vertex normals
Wip
https://www.artstation.com/challenges/medieval-back-and-forth/categories/175/submissions/76853
Post building is based on concept of Guillermo Martínez
https://www.artstation.com/challenges/medieval-back-and-forth/categories/170/submissions/73844