This needs a lot of curation. Maybe put some ads and offer a percentage to users willing to give ratings to the quality of the images. I will be happy to spend some time clicking , to earn some money for a beer once in a while.
You're spot on with the curation! I'm really exciting to add voting and weighing to the images. I think that's where this'll really start to shine. "Girl reading in a coffee shop" generates about 1 usable image per summon, so I'm looking forward to empowering users to manually filter for more usable images.