OK the whiteish area around the sun is a little blown and sharp edged, but who cares as the image still works very nicely.
Have you thought about lifting some of the brighter coloured area from just near to the sun and dropping it in over the blown out area using a luminosity mask or something? Or perhaps using the "blend if" layer mixing option??
But only a nitpick, so obviously feel free to ignore this latter comment

Dave