Complex sentence: Architect Bertie Crewe was hired to design the first incarnation of the Palais, whose internal decorations were based on a Chinese theme, featuring lacquered columns, fretwork and a pagoda roof with Chinese lanterns.
Split into simpler sentences: Architect Bertie Crewe was hired to design the first incarnation of the Palais. Its internal decorations were based on a Chinese theme, featuring lacquered columns, fretwork and a pagoda roof with Chinese lanterns.