Figure11. 1: The picture of 'Smith brothers As shown in the figure all other faces of Smith brothers'are arranged around the face in the center (prototype). In other words, other faces are more or less similar to the face in the centerFigure11. 1: The picture of ‘Smith brothers’ As shown in the figure, all other faces of ‘Smith brothers’ are arranged around the face in the center (prototype). In other words, other faces are more or less similar to the face in the center