Larry, that is an interesting and valuable technique, and can make wonders in many cases. Thanks for reminding us about it.
In this particular case, however, I vote for the original color version. It retains that melancholic, muted, subdued feeling of pre-dawn atmosphere.
Come to think of it, if the goal is art fair sale, Larry's version would be the winner. If, however, it is for personal enjoyment, especially for you, Jeremy, since you were there, then the OP color would be my choice.