Hmm, some work could be done ont he texture of the planet, and there's some strange black thing on the planet's ring . And for an image this close... why is the ring made up of solid colour, instead of asteroids / gas ?
well this shot was taken 12.54 million miles away from Saturn as Cassini approached it so im not sure what camera lens you would imagine would be able to define any gas or rock formations in the rings at that distance, similarly for the planets texture - thats what it is - no more no less. the stange black thing is the shadow of the planet...