Debbie, here are some ideas for you. If you type in "old window frames" in the search box and hit "enter" you will find many more ideas. Hope this helps: https://www.hometalk.com/13969477/diy-vintage-inspired-window-panes
Here's one created by another Hometalk member. I hope this will inspire you as you create your own. Wishing you the best.
Here is one idea: https://www.hometalk.com/12963645/upcycled-windows
Here's a good tutorial: https://www.youtube.com/watch?v=o0pWh8CAq1Y
You can add eye hooks in the top of the window then hang from those. Place the photos onto the glass using poster putty or double sided adhesive.
Old window frames