As follows:
Determine the head shape. The head shape of the oblique side is characterized by both the front side and the front side, with one side more similar to the front side and the other side more similar to the front side.
Similarly, the left and right sides are asymmetrical, and the downward line should also be bent. The side near it must be longer, depending on the angle of the head.
The plane formed by this line and the facial contour line on the other side of the nasal midline is the frontal face; The position of the ear midline is inferred from the position of the cheek line and the back line.
It is more similar to the mandibular anterior contour, but pay attention to the change of radian. ?
Nose, mouth and ears. The starting point and ending point of the nose are located at the midline of the nose.
The length of both sides of the nasal midline corresponds to the length of the face on both sides of the nasal midline; Ears have both front and side features. ?