Richard Hewett is currently creating a series of videos showing some of the techniques he used on creating his realistic portrait of Ben Kingsley. In part one, Richard shows the method he used for creating the maps for the portrait in Zbrush.
A series of videos, documenting and explainng the process Richard Hewett went through to create this portrait
Although Richard doesn’t walk though building and sculpting the model, he does provide some tips on what to look for in detailing the model for a portrait. As an interesting side note on doing a google search for an image to use in this post, people clearly enjoy creating a portrait of Ben Kingsley in ZBrush as there are more of them around than I would have thought. Popular face.