The project showed small pieces of egg shell, small but different sizes, that she spray painted with gold Martha stewart guilding. Then she took a canvas and glued them on in her design.She used hot glue. I found the project in my trash. She said see her other diy projects at https://www.lilyardor.com/diy/ Hope this helps.
She painted the canvas white.
Here's the link to the project:
I would use egg shell first to make pictures then cover with gold after