The Interdimensional Traveler: A Full Body Character Design - ZBrush Creature Design: Creating Dynamic Concept Imagery for Film and Games - page 159

Figure 3-62: Changing the shoulder shapes
Giving the trapezius a more angular overall shape creates a large diamond shape from the upper body sil-
houette ( Figure 3-63 ). This large diamond becomes a striking, iconic aspect of the character's overall look.
Figure 3-64 shows the back anatomy.
Figure 3-63: The shape of the trapezius in silhouette creates a strong diamond configuration.