Portrait of Count Alexei Bobrinsky Franz Xavier Winterhalter (1805-1873)

The picture has something of this: portrait, people, moon, man, science, wear, exploration, music, model, museum, woman, astronomy, side view, sculpture, profile, light.
Perhaps it’s a portrait of a man wearing a gray coat and a black shirt and holding a cane in his right hand and a brown hat on his left hand.