The project looks interesting, but why should everything be anonymous?Is it not possible to interact with the platform and the photographer's open?How does Your concept differ from such a project as
https://www.wemark.com/?
Too many differences. In fact both platforms are different than each other. The only thing common is they both are somehow a platform for images.
This platform is anonymous image sharing, no signups or logins required.
This platform gives free coins for uploading the images. No downloads required for earning.