I was working with Capture NX when this double rainbow showed up in my window. I took my D200 with Sigma 10-20 to take the full extent of this rainbow. Then, I changed lens for my Nikon 18-200 for the second shot.
Thanks Stephen! In the first picture, the rainbow was very strongly lighted, as much as in the second shot, however the fact that I used a 10mm very wide angle shot made it so small that the various colors don't come out properly. I tried different exposures and +/- compensations but they all looked almost the same. I believe it is a matter of inherent contrast more than exposure. The largest rainbow was fainter.
#1 is a fantastic capture but unless you can bring the colors up I think it remains more of a meteorological capture than an artistic one. But, I think those colors are there. They can be coaxed out.
#2 is quite original and a very interesting approach. I'd consider trying to brighten that foreground foliage a little and maybe clone out that branch sticking up. What's important is that you nailed exposure on the rainbow. It's a great shot.
Here are new photos with different post-processing. For the first one, I mostly increased substancially the contrast of the sky. Then, I added some saturation/warm locally to make the rainbow slightly more colorful as well as make far away clouds (at the bottom left of the rainbow) stand out more. I also improved the light/contrast of the greeneries on the foreground. I also took a different shot than the first time (N.B. the big ship is not visible anymore on the St-Lawrence because not hightlighted by the sunlight).
For the second photo, I simply started afresh with +1 exposure compensation.
I hope this is what you meant. Nevertheless, after side by side comparison, the new versions stand out much more and I believe I have improved the final result. Is it more artistic ? I hope it is at least a little
Your feedback will be very welcome again as your first feedback really helped me.
Edited: I forgot to mention that since I use only NX 1.3, I could not remove the branch. Maybe with NX2 new tool for such purpose.