The Nubian Guard 

"The Nubian Guard" is a painting by the German artist Rudolf Ernst (1854-1932) depicting a scene of a Nubian man, likely a guard, standing outside an elaborately decorated door in a Middle Eastern setting. The painting is renowned for its realistic details, including the man's intricate clothing and the intricate carvings on the door. Ernst was known for his fascination with Orientalist subjects, and his works often portray scenes of daily life in North Africa and the Middle East. The inclusion of cats in the foreground adds a touch of whimsy to the otherwise imposing figure of the guard.