Wow, this looks like an interesting project indeed. They have a slick working MVP: https://demo.photochain.io/#/

This is one of those beatifically elegant projects (like Air Bnb) where you think to yourself, why has no one disrupted this business before? Disrupting those giant stock photography businesses is almost THE perfect application for a DApp 

I think I'll be investing some of my recent ETH gains into this one!