The wonder of computers. A few years ago to obtain a result like this would mean you process a colour transparency as a colour negative film. Then you print it. Many professional photographers did not have the processing equipment to do this, or the inclination. Or the creative ablity to visualize the finished result. Of course todays image maker still needs this creative ablity. Even if they are using photography, paint (oil or acrylic), coloured pencil, watercolur or even molten pigmentted beeswax.
The original photograph was taken at Lowstoft, Suffolk and the background was cleaned up with photoshop. For the second photograph the invert button was used with slight coloue adjustment.