Stylized PBR hair breakdown: Lelith Hesperax

Disclaimer: this is an unfinished ongoing project, still lots of work to do, but people been asking for a simple explanation behind how I render stylized hair, so I took a short break to write this down.
No-flowmap approach relies more on manual arrangement and careful placement of cards.

Character is Lelith Hesperax from W40K based on fanart by https://www.artstation.com/kano