I just smoothed out the original face, moved the mesh around till it was at a good starting point. The cavities were just the standard tool then I did a reverse cavity mask and deflated it in the deformations. The inflate deformation is one of my faves in the deformations pallette. You can do so many cool things to your models with it.
By all means.
nice work David,always inspiring…
awesome sculpt!
and I like what you did with the final image. really nice. 