Thanks everyone for the kind words. The image at that size (512 x 288) took about 14 hours to render (and my laptop is at the higher end compared to other computer setups on the TG2 bench mark site). My settings were a Detail of 0.8 and AA of 5 with all the quality settings for the clouds at 1.
I as I mentioned before, I am preparing a sample file of the circular clouds at the moment and I will hopefully be able to post it soon enough.
Your offer to render the scene is generous indeed Oshyan, and I might take you up on that. I work on a laptop and not really excited by having it on for more than 24 hours at a time. Though with the recent successful tests people have been doing about pausing renders and putting them to sleep then waking up the OS and resuming the renders I will have a go at that
