The first thing we note is that the artist has strengthened the bottom line of the lunette by repetition. He has carried a stone bench along the entire width, which also serves as a seat for the figures. Do you see the advantage of making the figures seated? If Raphael had represented them in a standing position, he would have had to make them smaller in order to get them entirely into the space; and this would have lessened the feeling of bigness in the composition. So he invented a device by which he could represent them seated. Further, he has raised the bench in the center by the addition of another step, so as to lift the composition naturally in the part where the space to be decorated is highest.