The perspective is correct on all the the obscured people, which is rare. The people in the background have different heights as well, which seems to coincide with the distance to the curb on the street.

Europeans can be more attractive, they have better or free dental, orthodontics, more strict laws on food quality/ composition and sometimes better personal health habits.

Sure they are all pretty, but if they were 9s in Michigan they would be 7s in Germany.