Here are some links to compositional ideas for painting and photography that I think apply to dance. Especially in relation to the instant choreo composition modality of Ensemble Thinking.
The Rabatment of the Rectangle
http://en.wikipedia.org/wiki/Rabatment_of_the_rectangle
The Rule of Thirds
http://en.wikipedia.org/wiki/Rule_of_thirds
The Rule of Odds
http://photo.stackexchange.com/questions/11475/what-is-the-rule-of-odds
Placement of Elements
http://painting.about.com/od/composition/ss/composition-painting-elements.htm
The Painting’s Secret Geometry
http://www.francois-murez.com/composition%20en.htm
p.s.
if dance is a visual art, why are the people who watch it called an audience?