Your gallery will be available for 90 days from the day you receive your final images. At any time you can review your gallery and purchase additional photos. See how your original 12 or 18 photos do at the beginning. Since we do have so many wonderful additional images left in your gallery, you may decide to refresh with some new ones. Feel free to contact us with any questions. But do remember, once your 90 days are gone, so will your gallery.