Greg Manchess in his Muddy Colors blog says, "Below are questions to help you figure out if your painting is working. Viewers, whether they know it or not, are evaluating your work much the same way. They can’t articulate these questions, but they feel them just as strongly.
Ask yourself these questions about your piece. Analyze and evaluate. The viewer doesn’t know what you meant to do. Only what you showed them." I like how #1 starts with line. Machess wants you to ask yourself,
Do the elements in your piece flow through the rectangle?
Does your eye easily move from the main objects to the minor objects?
Is there a sense of rhythm to the elements?
Click on the link and keep reading his 10 Things.... Evaluate Your Painting
I am at teacher with Stokes County Schools.