REMOVE

1. hats
2. hills
3. sky
4. bushes
5. landscapes (representations)
6. oceans
7. beaches

WHAT

1. Visual Works (hierarchy n … (1)
2. artists (visual artists) (1)
3. black-and-white film (1)
4. buildings (structures) (1)

More 

WHERE

1. Ensenada, Baja California … (1)

WHEN

1. 1949 (1)
2. circa 1949 (1)