1. Base spray with Chaos Black

Base layers

1. Drybrush entire model with Dawnstone
2. Entire cape with Flesh Tearers Red
3. Cover large (non edges) surfaces of cape with Abaddon Black
4. Cover all armour / metal with Iron Warriors
5. Paint the bone with Wraithbone

Highlights, shading, contrast

1. Roughly highlight the cape with Khorne Red edges
2. Pick out the sharp edges and lines and highlight with Gryph-hound Orange
3. Dot the sharpest tips and ridges with a tiny bit of Bestigor Flesh
4. Cover bone with Skeleton Horde
5. Cover the armour / metal with Wyldwood

Final details

1. Very minor edge highlight of Corax White on bone
2. Highlight weapon (or all metal) with Ironbreaker