I think its vey good! The two moons are really great, with nice details. But yes I agree that the image is a little over processed. I am thinking that you output a HDR and a Tiff? and then used photoshop to blend? If so, just move the balance in favor of the tiff over the HDR. If you used some sharpening tricks, just reduce them slightly.
Great work again swissAdA, I would like to see a render of the ship heading to orbit too.