REMOVE

1. rubbish
2. sky
3. garages
4. windows
5. hills
6. Still, Clyfford

WHAT

1. Visual Works (hierarchy n … (1)
2. automobiles (1)
3. black-and-white film (1)
4. brick (clay product) (1)
5. bushes (1)

More 

WHERE

1. New Windsor, Maryland (1)

WHEN

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