Thank you all - Erik, Charlie, Mike and Gary - for your comments; much appreciated.
Gary - in my own defence - this was a very difficult file to process. The scene as originally viewed and captured had almost no colour and no contrast due to the mist, so the result you see is heavily PP-ed - much, much more than is normal for me. So this image is partly a work of deduction or even imagination, and not everyone will like it. Also, I began to have similar thoughts and after posting did quite a bit more with the image. Rather than post a new version of the same image, I am posting another from the same series, in which a subtle shift in the mist allowed more natural colour and contrast to come through, so I had a lot more to work with from the start. Let me know!