Finally got a green light from Powerhouse animation to show my work for Netflix Castlevania. Once again huge shout to all people working on this series! Also by showing them my workflow and octane render, was a big help for the core team in improving their pipeline, so I'm grateful.
It is not step by step, more like layer stack. With this one, I had a pretty good base layout model by justin kauffman. I render few renders passes like Depth, occlusion, and normal pass. And start painting on top.