This photo uses repetition of shapes effectively. Because of the reptitive fence line pattern.
http://www.flickr.com/photos/30884798@N05/4355183948/ |
This picture does not use repetition of shapes. Because the one red pebbles breaks the pattern of the green marbles.
http://digital-photography-school.com/wp-content/uploads/2007/03/images/break-pattern.jpg |