Facial shapes are determined by the position and prominence of the:

Facial shapes are primarily influenced by the structure and arrangement of the facial bones. These bones form the underlying framework of the face, determining the contour and overall shape. For instance, the prominence of the cheekbones, the width of the jawline, and the length of the chin are all attributes derived from the bony structure.

While facial muscles contribute to expressions and can also affect the appearance of the face, they do not define its shape. Skin texture may influence the perception of facial shape through the visual quality of the skin, but it does not determine the underlying structure. Facial hair can enhance or alter the appearance of facial shape, but it is not a factor in the actual determination of facial shape itself. Therefore, the foundational elements of facial shapes stem from the arrangement and prominence of the facial bones.