I like the colours Paula, you might be able to stretch the histogram a bit more to give it a bit more punch.
Luigi, well done, your stack is better than mine (I didn't choose enough alignment points). I reckon you could sharpen it up a bit more with the wavelets.
Ivan was kind enough to share his Saturn processing steps, you could try a wavelet setup similar to his and see how it goes.
Like me he does his stacking in Autostakkert, he uses more alignment points than I do and gets great results:
http://www.iceinspace.com.au/forum/a...9&d=1333432789
Then loads the final image into Registax
http://www.iceinspace.com.au/forum/a...0&d=1333432789
and applies the following wavelet settings to sharpen it up.
http://www.iceinspace.com.au/forum/a...1&d=1333432789
You may want to try his procedure and see how you go.
Autostakket is free and can be downloaded here:
http://www.astrokraai.nl/wp/download/
Or you can do the whole thing in registax, and just try Ivan's wavelet settings.
Ivan, Asimov (John) and Damian Peach use Autostakkert for the stacking part, and that is a good set of references, so I reckon it would be worth anyone's time to give it a go.