Thanks a lot Guys for all your comments.
Here is the original crop.
Originally, I trimmed on the LH side + top, to get rid of what I thought was a bit of dead space. I have played around a bit, so the whole image is lighter now, which means the clouds do not look as moody now I think.
All the adjustments to colour and crop etc were done with Bibble. What do people think now? Should I try and darken the clouds more? If so, how would I do that ? Masking and burning?
Thanks for looking once more.