Who are the people on the 'Exile on Main St' album cover?

The Rolling Stones - "Rocks Off" - "Exile On Main St." (1972) I hear you talking when I'm on the street, Your mouth don't move but I can hear you speak. What's the matter with the boy? He don't come around no more, Is he checking out for sure? Is he gonna close the door on me? And I'm always hearing voices on the street, I want to shout, but I can't hardly speak. I was making love last night To a dancer friend of mine. I can't seem to stay in step, 'Cause she come ev'ry time that she pirouettes

Rolling Stones - Exile On Main Street

Exile on Main St turns 50: how The Rolling Stones’ critically divisive album became rock folklore