Digital Diva here with a look at one of my favorite photo phenoms. Looking out the window in Hawaii, I saw this rainbow. I shot the iPhone photo right through the window streaked with rain. (Hey, no need get wet!)
Here is the HDR version done with TrueHDR app. You can faintly see some diffusion from the wet window, which actually makes it look more painterly.
Next I tried a faux infrared with Tiffen IR filter in PhotoFX. Believe it or not, we have rainbows like this on Moloka`i - it is called the land of the night rainbows. They happen during the full moon when it shines on the veils of upland rain. Sometimes they are pastel colors; more often I've seen the in varying shades of white. It is always awe inspiring to see the night rainbow.
Fnally, I combined the faux IR with the color shot and blended them in DXP, the double exposure app for this watercolor effect.