Free images results:
 

Colors Summer pictures, stock photos and images

 
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Sunflower Royalty Free Stock Photos
Author: Red2000
Ball Royalty Free Stock Images
Author: Kurt
Flower Stock Photos
Author: Fotohmmm
 
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Also, here are some commercial RF-licensed images that match your search criteria:  
Colors Royalty Free Stock Photo
Author: Lench76
Colors Stock Image
Author: Superdtg