SHADOWBOX ON LAYERS.
If you want to make your own settings and download it, keep in mind that the layers must be resized on X and Y 99.7% (Frame and Back cover do not need to be resized)
I used a led light string that I bought from Shein which is very easy to hide in projects like this and it is also very light. I'll leave you the link here
https://euqs.shein.com/1pcCopperWireStringLightWith10-20/30SquareBoxes-p-22279991-cat-2306.html?share_from=null&url_from=GM7475035390458499072&ref=www&rep=dir&ret=euqs

I am waiting for your opinions about this project in the comments.
New projects are coming...don't forget about Folow. Thank you