Thanks for your comments.
I wanted the image to fade into perfect white. So that it looks a little bit like an illustration on white paper...Sorry its causing your eyes some pain ZG002
I will have to go back to it and do the selection around the bouy more accurately, it was a little hard to do on the left because its highlight merged with the background visually. But you're right it could look better.
I am with FStop11 on the spot colouring. I hardly ever use it myself and I considered full monochrome and boat only, but it just lost something.
BloodyL: Consider this image renamed from the boring 'Boat' that was all I came up with to 'Cocytus'.

Thanks for your insight and knowledge !