That's a *lot* of pixel smearing in the crop. What ISO was this image taken at?
I see the problem, especialy in the middle.
Sorry, it' partly because I've masked details in Lightroom and saved the crop "for the web, 70% quality" in Photoshop !
Here is a better file, not perfect, I must admit !
This kind of picture seems to be an interresting challenge.
Thierry
[attachment=10729:100_Crop_1085.jpg]