Thankyou so much for that link. I will check it out tomorrow. It's after 3AM now, and my brain refuses to concentrate on Bryce any longer. I managed to make some nice lookin' renders, but nothing at all like what I want.

You're exactly right about the sky lab making nice effects at the cost of lighting. I think that is why all my skies and water were going pitch black and just horrible. I still don't know how I managed to get a purple moon and red sky and blue water - obviously not at the same time, but in various attempts. It does get frustrating when it all seems to be hit and miss with turning the dials of what will work and what won't.

But hey, it's all practice.

Best of luck trying to replicate the image. I will be very interested to know what results you get. But for now - I need sleep.