In the period of the Western Han there occurred a considerable boom in the use of figures in tombs, and there was also a marked progress in the depiction of human forms. Both sculptures Vp 12 and Vp 13 are unique examples of the style which predominated in the region of the capital city Xianyang around the mid-2nd century BC and which was derived from the monumental soldiers of the terra-cotta army of the First Emperor. Remarkable is the psychological faithfulness of the sensitively modeled faces.