With many thanks to Oshyan who kindly rendered this for me in HD after I edited some various settings from the last one.
Updates are; Ring shadow added, planet radius a bit bigger, soft shadows enabled, moons shifted around a little, rings form and sharpness taken back to their original settings(as seen in The Grudge.tgd in file sharing) and some various other settings that I won't bore you with.
Oshyan tried hard to keep a good balance between render time and quality, unfortunately, it would have taken far too long to render with ample settings to remove the slightly popping moon-shadow on the planet face but I'm very happy with the resulting render. Looks much better than the first, mainly due to the rings, which I softened up far too much in my first video in this thread.
Cheers, Oshyan! And cheers for looking, everyone else!
http://www.youtube.com/watch?v=uL4Bu_qoVfc