How can I see my backed up photos?

Hi

If you are using iCloud Photo Library, to view your photos via a web browser on a computer:

Sign in to https://www.icloud.com/ using your Apple ID and password > open the Photos app.

If you are instead referring to an iCloud backup, note that a backup cannot be browsed or searched to see or open any of the component elements. It can only be used to restore your iPhone's content and settings in the event that your iPhone has been erased.

You may find the following support resources helpful:

• Taking and Managing Photos - Official Apple Support
• Manage your photo and video storage - Apple Support
• iCloud Photo Library - Apple Support

I'll add if you are using iCloud Photo Library there is much to see. They are the same photos that are on your iPhone. Delete a photo and it's gone from the iCloud library.