The sky looks realistic, if this is your intended subject then no reason to adjust the rest of the photo.
On my monitor the first has some noise in the blue sky.
Might be my monitor?
I prefer the original Graham...or graham...
Is the processing too much? That depends on what you were trying to achieve. The sky is a rich blue but I don't think it looks garish.
My goodness - stunning images.
I think the first one looks much better. The highlights and the streaks from the clouds are almost invisible in the original.
Hi Graham. I think I would prefer something between your edit and your original