Balance
7. informal

The dogs are different sizes


The placement of the cat makes it seem larger than the dog.

8.formal balance


all subjects are even on both sides of the photo.


The photo is symmetrical.

9.

This photo is not balanced at all. its not centered and noting is the same.


PHOTO SOURCES IN ORDER

http://scaphoto.blogspot.com/2009/08/shooting-assignment-2-photographic.html

http://klstokes14.wordpress.com/2012/12/04/informal-balance/

http://webdesignledger.com/inspiration/inspiring-symmetrical-photography

http://clickitupanotch.com/2013/12/photography-composition/

http://joefaraceblogs.com/white-balance-infrared-photography/