The entirety of the Midlam Miniatures’ 2019 Kickstarter “Procession of the Plague Cult”. 14 figures in all. I enjoy the old school / oldhammer style of the traditionally sculpted Midlam minis.

Quick and Easy white robes:
Black or zenithal undercoat. Heavy drybrush with Vallejo 74.015 Nocturna Pale Flesh. Then a medium pressure drybrush with Reaper 09276 Vampiric Highlight.
Thinned Dark grey or dark brown or even black, lining the front seams of the robes, inside the cowls and around where the hands poke out of the sleeves.
Details as you like. I used three different base skintones across the models, then strong quickshade ink and three different lighter skintones to highlight the different models so they would have a bit of variety at least in the colour of their skin.

Brother Blaze and Sister Luci are the bearers of the Holy Flame. And, incidentially, the unholy phlegm. After all, they are the Plague Cult.

Brother Peal and Brother Guidon.
The banner was painted vallejo buff then guilliman flesh contrast paint. Later a thin layer of a mix of the light skintones from my palette evens out the bad blotches on the flayed skin. When dry I used a dark blue marker pen to do the tattooed unholy writings (in a Secret Cult Code based on Ancient Aramaic. Or maybe they are just nonsensical squiggles.)

Brother Pyxis and Brother Codex

This is the Temple of the Mad God. What is thy business, unbeliever?

Brother Morbid and Sister Malady

Brother Darkoath and Brother Spike

Brother Badfinger and Brother Muster

Brother Mortis and Brother Torpor. The sleeping dead.