I have never seen such amazing cloudscapes except in Skagit county. And luckily, even if they are not just quite as vivid as what I cook up, they offer me the inspiration of pre-visualisation.
Another note I must add is that Hugin is now easier than ever to use. I really appreciate Hugin and every time it becomes easier to use — and this time I added a 1.66 bracketed stack of exposures — it did wonderfully. I added essentially a 4-stop ND gradient (mutiply) on this sky to get the sky and ground about equal in Gimp.