Where colour is better

A while back I shot this scene of grass around some tree roots.  I liked the look of the roots and thought that by shooting the photo in black and white, it would enhance the look of the photo.  But it was not to be.  The tree roots and its immediate surroundings were already almost totally monotonic, and taking away the green grass meant that the roots were no longer framed, creating a very drab and boring photo.  So in this instance, colour was the better choice.