This image shows "simplicity". The picture is very simple and easy to see and understand. Not many things are included in this picture, which makes the picture easy and simple to understand.
This image is an example of "framing". The picture is framed around the fireplace. The outline of the picture adds more to the picture.
This image is an example of "balance". The mirror is balanced between the two lamps, adding more frame and shape to the picture.