What camera/process did you use to get these colors ?
Let me correct myself - When I said no color correction I was refering to the color correction option inside of Autopano Pro.
To arrive at my perception of pleasing colors, I always shoot in RAW format and during the conversion process from RAW to TIF for this pano, I upped the Vibrancy option to where I felt the color was a good representation of what I saw on that peaceful morning. (The vibrancy option is a very nice option available inside of Pixmantec RawShooter software)
In reference to the gradient of the sky from left to right getting lighter - I found very few solutions in panoramic software that can handle that type of situation without horrible banding and just plain ugliness. Autopano Pro handled it like a champ!
bilzmale your suggestion is compelling and several times I just about did exactly that but for some reason I feel its a point of interest and can't bring myself to remove it. Maybe it does attract too much attention?
Thank you all for your kind comments and I hope to contibute more ideas and images soon.
P.S. The camera I use is a Canon 20D and in this case it was a 50mm Prime lens (my favourite lens)