Where are the Lhazareen portraits?

As it says in the title - where are the Lhazareen portraits located in the files? I’ve recently noted their addition to the game, but I can’t find them anywhere in the files. I was hoping to look them up and possibly edit them for a Lhazareen immersion submod for a Red Lamb campaign. If I wanted to mod Lhazareen clothes, where should I go?

Also, it’s worth noting that the current Lhazareen portraits are a bit buggy. It seems that military headgear doesn’t override ears and hair, so they still show up over the chainmail. 

Thank you.