Thanks for the lovely comments,
I had been there previously during storms, but this time I was really looking for something a bit different, for the detail that would make the difference, I thought the two walkers in the mid-ground were that little extra thing. it sort of tells a story rather than just plain landscape.
To me, this is by far an outstanding capture, as you said, it tells a story, shows power and the tone matches the atmosphere. This blows all those pretty ND Filtered shots out of the water (forgive the pun).