The event has two places where you can add photos.
Event banner photos
School Admins can add promotional event photos to the Event detail page. Go to the three-dot menu to add and select Manage banner photos. The first added picture is shown on the Events list view page. Users can navigate the banner images using arrows or swiping the photos on a touch screen.
Photos page
All users can share their event photos to create buzz. Go to the Event Details page and navigate to the Photos tab on the desktop and the Photos page on mobile. Click the Add Photos button.
To close the photo uploads to this page, go to the three-dot menu and select Close Uploads.