REMOVE

1. eyeglasses
2. shadows
3. rugs (textiles)
4. backdrops
5. sunlight

WHAT

1. Visual Works (hierarchy n … (2)
2. black-and-white film (2)
3. buildings (structures) (2)
4. bushes (2)
5. hats (2)

More 

WHERE

1. Ensenada, Baja California … (1)
2. New Windsor, Maryland (1)

WHO

1. Campbell, Sandra L. Still (1)
2. Clyfford Still; Still, Cl … (1)
3. Sandra L. Still Campbell; … (1)
4. Still, Clyfford (1)

Less

WHEN

1. 1949 (1)
2. 1969 (1)
3. circa 1949 (1)