REMOVE

1. yards (areas)
2. fences
3. sky
4. sidewalks
5. shadows
6. streets
7. automobiles
8. 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)