One of the virtues of black and white photography is that shadows create high impact moods. Two examples are shown above. The Cliffs at Page accentuate the setting sun's shadows, presenting a mood of pending chill in the last light of evening. Canyon de Chelly's Rock Range features a black band of foliage at the bottom that draws the eye up to the majestic rock icon in the center, made all the more prominent by the shadows it creates. Enjoy.