Answer:
The Double-headed serpent is an Aztec sculpture. It is a snake with two heads composed of mostly turquoise pieces applied to a wooden base. It came from Aztec Mexico and might have been worn or displayed in religious ceremonies. The mosaic is made of pieces of turquoise, spiny oyster shell and conch shell. The sculpture is at the British Museum.
Explanation:
The amount of lighting could set a brighter or darker tone, as could the colors used to portray the mood. Less lighting could mean the play has a more serious topic, where natural lighting could lend a happier theme.