Download the photos to your computer, save them there, or to an external drive, or burn them to a CD or DVD. Once you are sure they are saved and you can view them, then delete them from the cloud.
If they are still on your phone, they may re-appear in the cloud when it syncs with your phone. If you don't want them back on the cloud, then they need to be off yourphoen as well, or set your options not to back up those items.
