Thanks for the comment @spliffatboy. Perhaps what you mean is beautiful artwork :)
And good spot it's post produced, although I think this particular picture is more striking in B&W.

As I'm shooting on a digital camera with selectable profiles and a live view it's not like shooting in B&W straight would make a huge difference, although I'm open to being corrected or told off for saying that! Sometimes pictures work better in B&W but you only realise in hindsight, so I it's nice to start with the option of colour so it can be swapped. I'd love to one shoot B&W on an old film camera though for sure, need to get my act together to do so!