REMOVE

1. gardens (open spaces)
2. trees
3. shadows
4. windows
5. towers (building divisions)

WHAT

1. Visual Works (hierarchy n … (1)
2. Yaddo (1)
3. black-and-white film (1)
4. bushes (1)
5. exterior views (1)

More 

WHERE

1. Yaddo, Saratoga Springs, … (1)

WHO

1. Clyfford Still; Still, Cl … (1)
2. Still, Clyfford (1)

WHEN

1. 1934 (1)