Portrait of an unknown general from the Benckendorf family Vladimir Borovikovsky (1757-1825)

The picture has something of this: portrait, people, man, wear, science, exploration, uniform, leader, lid, jacket, mustache, facial hair, astronaut, retro.
Perhaps it’s a painting of a man with white hair wearing a blue uniform with a red sash around his neck and a star on his left side of his left arm.