How do I restore my photos from a previous backup from my old phone ?

Greetings, Martyzview.

Welcome to the Apple Support Communities. It’s understandable that you’d want your Photos to be restored. 

We see that you reached out to us from: iCloud security overview 

To clarify, do you use iCloud for Photos? If so, check out: Set up and use iCloud Photos 

If we have an incorrect understanding of the issue, don’t hesitate to provide more detail. The more info you offer, the better chance the community has to help guide you to a resolution.

We hope this helps! Thanks for being a part of the community.

Sincerely.