Hugo, many thanks for your comments and I agree the tree tops do seem to have lost it at the edges. I have adjusted them in the main image as shown by importing part of theorginal file. Your comment spurred me on, I was getting lazy!
Hi Martin, awesome scenery, and I really like the pastel tones in the sky. The composition, with the shrubs in the foreground, and the build up with the larger trees on the left, allowing the eye to "escape" to the spaceous left and the skyscape is fantastic. The trees on the left, crossing the horizon into the sky seem to be a bit washed away by the sky - something that happened during the postprocessing?
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