Nice shot. I was photographing a wedding in the Smoky Mnts. and the whole entourage was taken out to dinner at the Apple Barn and as we came out there was a rainbow and i gathered my bride and groom and had them stand in front of a large pool of rain water with the rainbow reflection going from the sky to the puddle with them in between and nobody would believe it was real lol. So you done a great job of finding something interesting in a hurry to enhance your rainbow.