Id be weary over the dust you have in your 1DS. If you notice closely enough you can see the dust particles from you ccd (grey dots) appearing all over the sky and on the top floors on the building on your left. Furthermore, the flare on the right hand side nearest to the viewer is a really big distarction which is a pity as it the image is pin sharp. Not sure how it compares to colour abberation, I'd have to zoom in. Great try...
