Here's the recipe for the marble:
- Basecoat with a greenish colour.
- Paint 3 layers of diluted Bleached bone. You could also try overbrushing Bleached bone instead.
- Wash with Devlan mud.
- While the wash is still wet add patches of yellow, blue, purple and realy any other wash you like. You can blend some of the washes and leave others more pronounced.
- Highlight edges with Bleached Bone.
- Highlight extreme edges with Skull White.