The number and placement of elements can affect the balance of the composition and by leading the viewer through the scene. An odd number is usually more interesting than an even number. Evens and odds can also refer to the number of elements reaching the edge of the artwork, which affects the way the viewer’s eye travels in and out of the composition.
Even Number of Elements
An even number of elements can seem uninteresting. The viewer’s eye has nowhere to go but from one fish to the other.
Odd Number of Elements
An odd number of elements is usually more interesting than an even number. This scene has an odd number of elements, with one dominant and two subordinate elements. The viewer is first drawn to the big fish, then to the smaller fish, then back to the big fish.
Even Number of Elements at the Edge
Evens and odds can also refer to the number of elements that reach the edge of the artwork. In this example, the buildings are touching the edge on the left and the right, making an even number.
Odd Number of Elements at the Edge
A simple change allows the buildings to touch the edge on the left, right and top, creating a more interesting composition.