Free images results:
 

Tulip Bud pictures, stock photos and images

 
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Tulip Stock Images
Author: Hixnhix
Tulip 4 Royalty Free Stock Photography
Author: Lleha
Flower Stock Image
Author: Ostenbaken
 
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Also, here are some commercial RF-licensed images that match your search criteria:  
Tulip bud Royalty Free Stock Images
Author: Devonyu