iCloud is a syncing service, therefore, if you deleted all the photos from your device, you may also have deleted them from iCloud as well.
Go to www.icloud.com (via a computer) and check the Recently Deleted folder to see if they might be there.
iCloud is a syncing service, therefore, if you deleted all the photos from your device, you may also have deleted them from iCloud as well.
Go to www.icloud.com (via a computer) and check the Recently Deleted folder to see if they might be there.
Also check the Photos app for a Recently Deleted album.
How to redownload your photos