The light and shadows just called for Black & White.
This section of side walk is near the waterfront of Copenhagen, Denmark.
Here is another selective colorization photo.
A nice way to touch up Black & White photographs and fairly easy to do.
A common trick of digital editing is Selective Colorization. That is where you have a single color in an otherwise black and white photo. Here is a straightforward tutorial on how to do that in GIMP.
Here is an example. Note the red on the belt.