In this great configurator you can create interesting photos or collages, and use many filters and frames for free: https://www.loonapix.com/
Free Collage-Programs:
Phototastic Collage
Pic Collage
Photo Pad Foto-Editor - test version
You can also download the Edible Artist program, which is directly developed for edible papers, with various shapes, for free. It has the only disadvantage that the image cannot be moved in it. Try it, and if you do not succeed in the result, text me and I will adjust it manually.
Here you can find pictures for Halloween and many other amazing graphics: pngtree.com
Then don't forget to come back to me so I can print your pictures on edible paper. Here you can upload them in different shapes and sizes.
If you happen to know any interesting websites or configuators, we would be very happy for you to share them with us!