Composing on a Canvas

On a recent visit to the Museum of Contemporary Art San Diego (MCASD), on the wall in large lettering were these words. I thought we all would like to think about these questions and words as we create our art.
Submitted by Christine Hall

Composing on a Canvas
Study the composition of paintings. Ask yourself questions when standing in front of a well-composed picture. What format is used? What is the proportion of height to width? What is the central object? Where is it situated? How is it related to the format? What are the main directional forces? What are the minor ones? How are shades of dark and light distributed? Where are the dark spots? Where are the light spots? How are the edges of the picture drawn into the picture itself?

Answer these questions for yourself when looking at a fairly uncomplicated picture.
John Baldessari, Southern CA artist