Recently introduced is a new feature where it is possible to edit your own photographs. When you click the EDIT INFO button you will find next to the thumbnail a button "re-upload" . When you click that you can simply download your photo and replace it with an improved version. All comments and the description will stay in place. The newly uploaded photo will be immediately visible. With improved scanning and editing techniques, there are quite a few shots on the site that have been replaced in the past with a new shot, but then with the loss of all additional remarks. This has now become more easy.
The function is purely available to the photographer of the shot, only photo admins have also permission to edit the photo concerned. This is for practical reasons, for instance in case a horizon has to be leveled to avoid deletion, this can be done by an admin, but ONLY after having discussed this with the photographer, so there will be no random editing by Admins, but you can always call on them in case you need assistance in with editing.