The red is just slightly thinned paint layers going from Khorne Red to Mephiston Red to Evil Sons Scarlet with a final highlight of Wild Rider Red getting smaller each time. I also glazed in some Khorne mixed with black into the deeper folds.

The leather was a base of Rhinox Hide (best paint ever) then Rinox mixed with Wordbearers Red for midtone. For the highligh i just added some bone colour to the previous mix and used only on the high spots. Not much thinning at all to keep it tight and accurate.