If you want to capture the post-apocalyptic scenes in Once Human's open world, you'll need to use the game's photo mode to save your photos to your gallery.
HOW TO TAKE A PHOTO IF YOU ARE A HUMAN
There are several vicious Deviants in Once Human that make for attractive subjects for photography. You can also create a photo diary of your memories in the game. While the game doesn’t tell you how to take photos, it’s a handy trick to capture your favorite moments and share them with your friends.
Here's everything you need to know about Once Human's photo mode.
To take a photo in Once Human, you need to hold Tab and click on the camera option. This is unlocked in the intro mission of the game itself, and everyone can use it fairly early on in the game.