That is very impressive Jase. Here is exactly the same area taken with the 5DH and 300mm Lens atf/2.8 about this time last year.. You should be able to flicker between your image and this one as they are the same size.
650kB
http://members.optusnet.com.au/~trlee8/IC4628s.jpg
It is obvious there is just a tad more detail in your image.
Bert