Colour in the sky is lovely... but I am sorry to have to ask.. did you clone in the moon from another shot? There is a dark ring around the moon that looks out of place and odd on my monitor.
No. It is a single shot (you can verify the EXIF). If you go over to my blog, I mention this shot as one where I had to pull back the detail in the moon.
Cool - I think its jpeg compression. Looking at it on a calibrated NEC 26" Spectraview. the 100% crop you sent me looks good, no artifacting.Nice shot.