One of my pleasures at our home in Montana are the local rainstorms. In the afternoon, they often produce rainbows that I can watch and photograph from the deck. This one showed up in the early afternoon, as you can see by the low angle of it’s junction with the ground. (5D3, 24-105 @ 62 mm, 1/80 s, f/11, iso 200, tripod and polarizer.
Mark: I really envy your yard! I especially like how the rainbow frames the BG mountain. I might crop about half of the FG field although that would mean eliminating the rocks and sagebrush which I think do add some interest. My only other suggestion would be to make the roof line of the barn/house go away. Makes me want to be there. >=))>