Of course, everyone knows you should avoid compositions that are symmetrical - because they are boring....
"600 Plus"
And, naturally, everyone knows you should equally avoid placing the center of interest in the middle of compositions for the same reason - they are boring....
"Book Ends and Odds"
Never have a line exit your compositions exactly in a corner - it creates two arrows leading the eye out of your painting...
"Stain Glass Daffodil"
Some visual symbols, once seen, can draw your attention more than others - like an eye ball, or a person.
