REMOVE

1. pillars
2. plants
3. automobiles
4. trees
5. sky
6. fronts (architectural)
7. bushes

WHAT

1. Visual Works (hierarchy n … (1)
2. black-and-white film (1)
3. branches (plant component … (1)

More 

WHERE

1. New Windsor, Maryland (1)

WHEN

1. 1966 (1)
2. after 1966 (1)