Great resource mate with an awesome license. Expect to see some major traffic on your site 
There already is major traffic…
Great ressource !
And very generous of you to set them to CC0, thank you very much.
The reason for CC0 was that sometimes you use a lot of pictures for one work and keeping credit of all can get very problematic and custom licenses restrict your whole work from being redistributed.
Really great resource. Thank You ! Besides, i like design, clean and not overloaded. 