I’ve had several people ask for aids in carving a child’s head. The proportions of a child are quite different from that of an adult. For example, while an adult’s eyes are halfway between the top of the head and the bottom of the chin, a child’s eyebrows are at that halfway point.
A baby has an under-developed lower half of the face. The neck is undeveloped and so the head looks like it projects in the back, and the neck seems quite narrow below the ears.
As the teeth come in and the nose and jaw areas develop, the lower part of the face becomes progressively longer until, at maturity, the eyes are in the center of the head.