Free images results:
 

Camouflage pictures, stock photos and images

 
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Soldier 2 Royalty Free Stock Image
Author: Webking
Barn Owl Royalty Free Stock Photos
Author: Tonyd
Lizard Royalty Free Stock Photos
Author: Pdiaz
Bull Snake Royalty Free Stock Image
Author: Bigo
Dry Leaf Stock Photography
Author: Rkhalil
Jet fighter Royalty Free Stock Photos
Author: Euler
Frog Royalty Free Stock Photography
Author: Cfan
 
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Also, here are some commercial RF-licensed images that match your search criteria:  
Camouflage Stock Images
Author: Vasiu
Camouflage Stock Photo
Author: Nrogul