Thanks, Bertus. It appears that the 400VC film (it is no more, and I have only 2 rolls remaining) reacts in an interesting way with light sources such as the sodium-vapor street lamps (especially the reflected light on the street surface - very reddish).
Indeed, nsouto. The same shot, but with 160NC (neutral color), was totally bland. (Although it was a more 'literal' interpretation, as our eyes/brain would see it).