Double Rainbow 6"x6" oil on canvas

Sometimes a scene will just blow me away and then when I try to paint it life gets complicated!  Sometimes, as an artist, I can infuse a painting, even one of mundane subject matter, with a sparkle and excitement.  But when painting a sensational scene like this, I feel like I just didn't put into it what I was feeling at the time.  I will study it for a while and think about it...maybe increase the contrast...change the colors...honestly I don't know what needs to be done.  Any suggestions?