If you mean how did I get a screen shot of my phone display then it’s simple. We hit the home button and the on/off button at the same time. Android phones work in a similar way.
If you mean the side by side then it’s also simple. I merely took two screenshots and used an app that allows for multiple photos to be put into a grid.
If you mean the pic of manicanPiss. I used my I phone and got close enough to “frame” the boy inside one of the details of the black fence that protects him.