The ability to filter to display reviews that have user photos help to build trust. It also streamlines, I believe I would choose this over a social media gallery feed because Google publishes UGC photos at their discretion and low quality images are removed.
Hi there @Jin_Kim 
Great idea, thanks for sharing! Let’s see if it catches on with the community, and perhaps it might make it to our list.
As for now, you can display reviews with photos only using keywords/author names in Include Reviews 
A post was split to a new topic: Display reviews with photos first