This is an extension to make your life so much easier with WordPress. Create beautiful and fully responsive grids from your admin panel. Complexity of your collages is unlimited.
If you are a photographer and you would like to create different complexity collages, you should definitely get this WordPress extension.
Once a grid is built you just take the shortcode and paste them anywhere in your post content. You can use them with any post types and anything else. This is one of the great power and flexibility WordPress offers to his customers.