MusesTouch [2013-05-29 22:14:13 +0000 UTC]
Depends on the color of the rocks. You could leave them black and highlight the edges with a grey or you could paint them in shades of grey and wash them with a black ink.
There are probably more ways to do it too, but this is what I have done in the past. Nice work so far.
👍: 0 ⏩: 0