This is a job for utopian.io :) They should be able to make something to weed through photos without every photo judge having to do it themselves.

There is a dmca takedown form here:
http://www.dmca.com/FAQ/What-is-a-DMCA-Takedown

I have been watching creatives get plagiarism removed easily with this takedown notice for years. This is a particular concern here since the media cannot be removed after 7 days. So it would be good if there was some type of bot to check photos in the first few days.

These choices are breathtaking and I love the umbrella street by @jpphotography the most.

I hope they are all real candidates and appreciate all you do for these many contests each week. I do not know how you do it!