This reminds me of Prosperity Palace, in the Kingdom of Cancer. Affluent indeed, Cancer is second in splendour only to the Imperial Golden Capital. It's described as mostly coloured in black in whites.
Gallery of Battles, Le château de Versailles - grand, high ceiling with elaborate decoration is typical of Baroque style. The use of gold and strong, masculine colours are further indications of the design period.
The Golden Imperial Palace is the most lavish space in the Empire of Ay. No expense is spared, no surface unadorned. It not only impresses the Nation it suppresses, but drains from its poverty-stricken citizens.