A standard of many design-oriented websites, photo galleries are a great way to put images front and center.

This photo gallery template is modern, fresh, and best of all—fully customizable. Access all of the photos in Powerpoint's Slide Master and then right-click on the image and select "Change Picture" to quickly swap out the template image for one of your own. 

Animated gif of a Photo Gallery-inspired PowerPoint template

Explore this template

All of the images used are courtesy of Pexels.com. I also used two free Google fonts: Abel and Old Standard.