Toop bad it actually came so close to you...that is a problem most of us wish to have with raptors!!

The comp suffers as a result, but the other big issue here is that the image is underexposed. With an overcast and bright sky you needed to add lots more light...this would have made the sky pure white (or close to it), but the subject would have been properly exposed. You could always do it in post-processing, but always better to get it right in camera.
Nice to have at least a record image of this neatly plumaged individual!!