Apply spot glazes/washes in semi random fashion to create color variations

1. Basecoat S75 Black Metal
2. Wash with GW Agrax Earthshade
3. - Spot Wash with GW Drakenhof Nightshade
4. - Spot Wash with GW Carroburgh Crimson
5. - Spot Glaze with GW Biel-Tan Green
6. Edge Highlight with S75 Heavy Metal