Closed-cell foam (L 200) was used for this project; however open-celled foam could also be used.
Figure 23-1: Start with design.
Figure 23-2: Sculpt the positive on a plaster head form to get the exact scale. Add wire to head form to support the clay.
Figure 23-3: Roughing in clay form and constantly looking at the sculpt from all angles.
Figure 23-4: Finished sculpt profile and front view.