Free images results:

Raindrop pictures, stock photos and images


Rain Stock Photography
Author: Otti38
Blast2 Stock Photo
Author: Prometeus

Also, here are some commercial RF-licensed images that match your search criteria:  
Raindrop Royalty Free Stock Photography
Author: Chepko
Raindrop Royalty Free Stock Image
Author: Gabock

Explore more commercial options: More Raindrop Stock Illustrations & Vectors | More Raindrop Stock Video Footage