Composition refers to the organization, arrangement, and combination of objects within the borders of a drawing space. For a great drawing, you want to bring the eyes of the viewer toward your center of interest within an aesthetically pleasing composition.
The idea that clockwise motion represents the forward motion of time so powerful that it's hard to look at such a watch or clock without having the slightly unsettling feeling that time is running backwards.
As seen from above the north pole of the Earth, most of the planets and satellites revolve in an anticlockwise direction. This is called Direct or Prograde Motion. Some satellites revolve in a clockwise sense. This is called Retrograde Motion and is shown by the presence of a minus sign.