Assignment 18 - Will the real Aaron Siskind please stand up?

1/200 sec; f/5.0; ISO 9000

1/200 sec; f/5.6; ISO 4500

1/200 sec; f/5.6 ISO 2000

I feel Aaron Siskind's work mostly have both hard side and light side, so I choose to show the hard and light by color. Harder side has hard color that people can see the darkness, lighter side use the light color so people can see the opposite of these two sides. Like the lighter background and the harder rail and the harder background and lighter grain. Also I choose lines to distinguish each part to show the difference in one photo.