Nice shot
I find it very interesting that your shot taken with a 7D has the same intrinsic dusty type colour as my shots from my 7D. No matter what I try I don't seem to be able to get the rainbow of colours Mike etc do with their 5D and 6D's, with my 7D.
The last few days I've been wondering if the 7D has a particular shift of colour at high ISO.
I wonder if you've found the same?