These photos exhibit three different principles of compositions in photography. Symmetry is when the two halves of the photos are identical. This concept can be found in the world, or be achieved through editing through the use of a mirror effect. Balance is when the two halves of the photos are made up of similar elements but are not identical to each other. Finally, asymmetry is when the two halves of the photo are different from each other.
Symmetry
Balance
Asymmetry