Cloudy weather = Repro Time
This was originally imaged on the 27th of May, using the RC8 and the 550D.
12x8min @ iso800
The first rendition was rather flat and the back ground was off colour.
This time I boosted the red and blue channels in both Saturation and Curves and set the black point in Curves as well. (I think I went too far with that though and clipped it

)
The first image is the repro.