While traveling in the Gauntlet Runner from one location to another, Metaphor: ReFantazio players will often stop at a few undiscovered locations and take in the sights. It'll often be viewed as the whole party standing at a location looking over a vast Vista. That's concept art for Metaphor: ReFantazio, and these events will give the players a Vista drawing as a keepsake for visiting the said location.
Although the Vista Drawings are a collectible in the game, they're also key items to rank up your bond with Maria. Collecting all the drawings will also unlock the "Vista Viewer" trophy in Metaphor ReFantazio.