At any time, you can choose to add, remove or edit the picture associated to your scene, rename the scene, or even delete it.
In the Scenes tab (or menu, on Android), scroll to the scene you want to edit. Tap on the picture to re-take one, use one from the gallery, or remove the picture altogether. Tap on the name of the scene to edit it.
After having done any modification, tap Scenes in the top left of the screen to go back to the list, your modifications are saved.
To delete the scene, select Delete.
Note: Only owners can create and edit Scenes (guests cannot), and the list of Scenes is shared across all the Members of the home.