My original intention was to post this as a colour image, but the more I played around with it the less I liked it, so I've gone for a toned black and white instead. If you're interested, the colour version is here:
I like the colours, but what I'm less keen on is the rather plastic-like look of the boat itself – it didn't seem to suit the mood of this shot, or match with the other three shots in this small series.
Taking the four as a whole I'm undecided which I like best but it's probably the second one, closely followed by the first.