This guy is one of the Armour Variants sculpts by Jes Goodwin. He’s a 1990 sculpt.
As far as I’m aware this would be the first Mark II armour sculpt (some 32 years old at the time of writing).
Work in progress:
Blue: Scale75 Artist Cobalt, built up to Primary Blue, down to Prussian Blue, highlighted with Primary Blue/Art White mix.
Gold: Necro Gold, Viking Gold, Elven Gold, Citrine Alchemy then White Alchemy. Shaded with Chestnut Ink.
Black: Art Black, highlighted with Artic Blue, shaded with Nuln oil.
Leather: Burnt Skin, shaded with Garaghak’s Sewer, highlighted with Burnt Skin mixed with a little Primary Yellow.
Silver: Black Metal, shaded with Nuln Oil, highlighted with Speed Metal
Red: Primary Red highlighted with a mix of Primary Red and Orange.
Green: Sap Green highlighted with Spring Green and Primary Yellow. Small light dot in Art White.