Rainbow over Hood Canal

I recently went on a road trip to Canada, and I captured this image on the drive home. A lot of rainbow shots I see on the net are oversaturated and look fake. I tried not to over do it with this one, although I did increase color saturation a bit. It may look underexposed too, but I like the feel of it this way for some reason.

There is a local county fair and I'm going to submit this one and see how I do.

GF1, Minolta 50/1.4, f/4