iCloud photos

If you turned on photos in iPad see this article https://support.apple.com/en-in/guide/ipad/ipad3d83fbbb/ios

The photos can be viewed at www.icloud.com by signing in with Apple ID and password through a web browser used in iPad see these help links https://help.apple.com/icloud/#/mm8b32f3ae27

https://help.apple.com/icloud/#/mm73262d11fe

If you have iCloud Photos turned on, the photos on the device are the same as on iCloud, with the possible exception that some of them may be space-saving optimized versions if you have that option turned on. You view them in the Photos app on an iOS device. You can also use a computer and login to icloud.com and go to the Photos app there. See: https://support.apple.com/en-us/HT204264

If you didn't have iCloud Photos turned on but do have an iCloud backup, you can restore the entire phone (not just the photos) from iCloud but you cannot otherwise view the contents of the backup. https://support.apple.com/kb/ph12521