So how many prints of this photograph have you sold?
Sorry it has taken me over a week to reply, been on my hols to Norfolk - but in answer to you question above, none of that image, but then again I have never had it up for sale or thought it worth selling to be honest. It was just a club competition image really and from a couple of years ago and one that did not do well in the competition either - ho hum..
But yes I do sell my 'best' work and (gets out his trumpet and starts to play it loudly) sales seem to be gathering momentum over the last year or two. I never really had the idea that I could ever make a living out of photography, but then, having done very well in an international competition last year, I have since been also asked to do some paid work for a very large international company. So who knows, if it all goes well over the coming weeks.
Also on the subject of 'best' work, I assume we all have images that we will hold back from any on-line forum, simply because we hope to sell it rather than give it away by having it reviewed and therefore downloadable, even in a low res version. So I (and I assume you do to) would never show an image that I thought to be saleable, other than as a mounted print in a gallery with a price tag attached to it.