If I accidentally deleted my photostream album, can I get it back?
How do I get my photo stream album back onto my phone if it has been accidentally deleted?
iPhone 5s, iOS 7.1
When you turn on my photo stream in Settings>iCloud>Photos, the my photo steam album is automatically created. If you deleted photos from your my photo stream album and they are no longer in your camera roll, they cannot be recovered. If the deleted photos were in your camera roll when you last backed up your phone, restoring the entire backup should recover them.