Gather together photos of people's heads and faces. Three-dimensional renderings are best since the artist can see all aspects of the head.
Sketch a few ideas, and get an idea of what the final head will look like. Choose the best of the sketches to use as a guide.
Working on a piece of cardboard, sculpt the shoulders and neck with oil-based clay.
Using an armature, or base model, guide the clay around the neck and head until it is completely covered. The armature can be made of wire or wood.
Pinch and smooth the clay around the armature until you've achieved the desired results and your head is completed.
Detail your sculpture with various clay and art tools to create the eyes, eyebrow, nose, ears and mouth.