On your child’s profile page, tap the icon for the grade containing the photo you wish to delete/change. Tap Keepsake Photo at the bottom right. Tap the three dots [...] in the bottom right of the photo you wish to modify, then select Edit, Share or Delete icon. When you select Edit, you change the photo by tapping Change Photo on the bottom left.
>>> IMPORTANT: Deleting a photo cannot be undone. Once you delete a photo it cannot be restored.