To useiPhone widgetslike the photo widget, you oughta have iOS 14.0 or newer.

How Do I Add a Photo Widget on iPhone?

Tap the+symbol on the top right.

iPhone screen with Add symbol (+) and Photos highlighted

Swipe down until you reach the list of widgets, and then tapPhotos.

Several popular widgets are automatically listed at the top of this menu.

Swipe right and left to examine and choose a widget size.

Swipe to see different widget sizes and Add Widget highlighted in iPhone photo widget setup.

When you know which widget size you want, tapAdd Widget.

The photo widget will appear on your screen.

To move the photos widget, press and hold an empty space on the screen.

Release the widget in its new location, then tap a blank spot and the widget will be in its new spot.

When the icons start jiggling, press and hold the photo widget.

Drag the photo widget to a new location.

Release the photo widget.

Tap an empty area of the screen, and the widget will be locked in its new location.

How Can I Change Photo Widget Pictures on iPhone?

That will prevent the photo widget from displaying that particular image in the future.

TapRemove from Featured Photos.

The photo will no longer appear in your photo widget.

Swipe left to customize the widget size, tapAdd Widget, and then tapDone.