Great approach to a rainbow viewing. It says, "I'm sitting under some trees, having taken cover from a quick afternoon shower that just passed. Drenched, you peek out and behold this wonderful rainbow." Great shot.
"There are no rules and regulations for perfect composition. If there were we would be able to put all the information into a computer and would come out with a masterpiece. We know that's impossible. You have to compose by the seat of your pants." -Arnold Newman
Ari