Thanks.
I like the 2nd and 4th one best myself.
I'm not trying to get anywhere, I'm just experimenting. The differences between the 4 projects are really rather minimal. I am not changing the overall cloud shapes or general lighting, I'm just reseeding clouds and terrain, and tweaking here and there, slightly, carefully. I had a spark of an idea for these type of skies, and now I'm trying it out. In the past I never was truly content with these trade of cumulusses, but this time I've got them I think. It still helps to have a lucky seed, but this time 80% of seeds look acceptable, half of that good, and every third of these, kind of great - as far as my taste for skies is concerned.
I also think the fractal terrain works really well, I can't seem to convince myself yet to add anything to it

Eventually, I may add some more detail in the form of fake stones, but not sure even if I want to try plants on it at this point.