This shadow of a railing seems full of dancing energy as it leaps down the stairs. Shadows vary in color depending on the light, as you can see here, where the tops of the stairs have a bluish tint.
Every man casts a shadow; not his body only, but his imperfectly mingled spirit. This is his grief. Let him turn which way he will, it falls opposite to the sun; short at noon, long at eve. Did you never see it? Henry David Thoreau