Pitted, worn metal:

1. Prime with Leadbelcher or equivalent (I used Colour Forge's Silver).
2. Coat the entirety of the metal parts with Vallejo's Environment Rust Texture
3. Drybrush entire mini heavily with Black Metal
4. Lightly drybrush Thrash Metal on the higher surfaces.
5. Tint the scales with Basilicanum Grey
6. Tint any brass elements with Snakebite Leather

Other basecoats

1. Weapon wraps and leather with Vallejo Model Color Black.
2. Scrollwork etc with Rakarth Flesh
3. Robes and shoulderpads with Barak-Nar Burgundy
4. Gems and inner-robes with Matt White

Shading

1. Wash the white areas with Soulblight Grey
2. Wash the purples and creams with Agrax Earthshade

Highlights

1. Work up through Barak-Nar Burgundy , Screamer Pink and Pink Horror
2. Light drybrush or fine highlights with Rakarth Flesh
3. Tint the gems with Terradon Turquoise
4. Wash Nihilakh Oxide in suitable areas across the brass

Bases

1. Coat with Vallejo Dark Earth and then basecoat it black.
2. Drybrush Stormvermin Fur then Screaming Skull