Hi Jan,
I would never try to 'save' or 'improve' an image by converting to B&W (unless it was shot with B&W as a goal). The color of your image is fine as a start (cool distant tones, warm nearer tones), I'd crop it on the left though (approx. half of the area at the left of the jetty).
Bart,
While I agree with you that one should work towards a mental goal, one should should be allowed to adjust ones motif to respond to the stages in development of the material expression of one's concept.
I believe its wonderful to have one idea and carry that out as conceived in ones mind. This is efficient and requires planning which I respect and try to do myself. However,
"openness to new experience" is a special quality different from distraction and lack of fidelity to one's concept. In this I mean that once one starts to make the image from what light came to the camera, the resultant nascent picture, is going to inform us of new possibilities. We should be open to these and treat ones child, the picture as if it has growing rights to behave in particular ways or special qualities to encourage.
So I have a problem with the word, "never", in this case, as ruling out a better image in B&W is closing off a legitimate creative option which the picture might voice to us.
In this case, I do see this as a color picture, and for B&W, I might have used a color filter to increase the contrast. I can see returning to do just that. Still, I hope we can be open to any option at the time of processing.
Asher