Dave Mullen is the creator of the Geometry Club, an Instagram project with an entire feed of images with the same composition and subject matter. Mullen first launched the project just for himself taking his own photos of symmetrical, triangular compositions, but soon he exhausted his collection and decided making it a collaborative project. So, he put together a website, drew up some guidelines to ensure consistency (see the GIF above) and invited others to submit their own symmetrical images. He is now working with a developer to create a free app, that will help people take perfectly aligned pictures.
Hey! Thanks for the mention on your blog. Glad you like the project 🙂
Good luck with it, it looks great!