Hi Grahame,
Indeed! I might add that bugs and birds look just like they are supposed to when captured.
I tried processing your image because I like it a lot and also because you've helped me a lot so I thought I would give it a try.
I used the curves tool to lighten shadows on the areas that I wanted to emphasize... (the leading lines of the rocks and the lighter clouds) and the curves tool to darken the highlights in portions of the stormy sky - and the floating log pointing to the island to add to the drama of the image. Painting with a 12% opacity.
I wanted to brighten the portions of cloud leading to the island more, and darken others but I couldn't do much without mucking up the sky but I bet you could play more with the full size raw image.
I will be delighted to delete this post after you see it, especially if you are not fond of my attempt. I will send you the PSD in a private message so you can see what I tried to do just in case you do like the idea.
http://i1098.photobucket.com/albums/...o.jpg~original