These are dancing devatas. They are royal court dancers. Interestingly, the Khmer culture is the birth place of the type of royal dancing that is represented in Thailand. There are several Thai cultural traits that originated in Cambodia, but you'll never hear a Thai say that. In the 1400s the Thais sacked Cambodia and stole away with its artisans, dancers, and warriors. Thai boxing = really Cambodian boxing. Thai food = Khmer food drowned in chili paste. Thai dancing = Khmer royal dances. Same with the silk weaving, wood carving.....