This image represents supply and demand in our economy. When there's more of one, then there's less of the other, and vice versa. The point where the balance between the two represents the equilibrium price where the most profit is made.
This image shows the rivalry between two popular soda companies, Coca-Cola and Pepsi. Because of the rivalry between the two companies, the prices of the two products are driven down by each other.
This image represents how our economy allows economic freedom. Consumers have a choice between various different brands and styles of shoes to buy from, and shoe companies can create whatever shoes they want to.