Oh what fun Derek,
I tried the Man from Mars approach, having set the points in RGB, the rest was in Lab.
My wife says it is horrible, but I enjoyed over doing this one.
I look forward to seeing a 'proper' take on it.
Wow, you don't do things by halves, do you? :) You've made it look more like a painting.
Here's by best effort. It's probably closer to the original scene than most others - it was nearly dark and the clouds were heavy. I've over done the orange, since it didn't really look quite like that. Greg was right, it's highly subjective, which is interesting in that you can do all sorts of things with the image and it still looks 'right'.
I took several goes at this and came up with a strange solution. I tried first in Lab mode, as is my habit, but I didn't quite get the pop I was after. So I saved that on a new layer for reference and went back to the original, having another go this time in HSB mode. Making the HSB saturation curve very steep gave me the pop I was after but it somehow didn't look quite right, especially compared to the Lab version. So I put the HSB version at the bottom of the layer stack and the Lab version on top, then set the Lab layer's opacity to 50%. This seemed to give the best of both worlds.