Thanks, Eric. It's interesting that you say that. I have been looking and looking for the B&W in this, trying all sorts of treatments, but they just don't work. I was sure there was one there initially, but then I couldn't find it so it's useful for you to comment that it needs colour.
Interestingly, it's extremely easy to change the colour in this one with some split toning in Lr. Of course, a lot of the "fake" colours are very kitsch, but just interesting that the image lends itself to such easy manipulation of colour, but resists all my attempts at B&W :-)