Question

One of the principles of composition which is also known as "formal architecture"

Answer 1

The Caisson (Chinese: 藻井; pinyin: zǎojǐng; literally: "algae well"), also referred to as a caisson ceiling, or spider web ceiling,[1] in East Asian architecture is an architectural feature typically found in the ceiling of temples and palaces, usually at the centre and directly above the main throne, seat, or religious figure.[1][2] The caisson is generally a sunken panel set into the otherwise largely flat[citation needed] ceiling. It is often layered and richly decorated. Common shapes include square, octagon, hexagon, circle, and a combination of these.[3]