This is my home made Daisy picture frame. The remote for the LED’s works through the white acrylic so I can turn the lights off and on easily. Works a great night light.
My rough plan was to use a 2X4 with some L brackets to hold them together while I rounded off the corners.
This shows how the mounting strip runs around the curved edge without any issues.
The back light can be as bright as I want in any color.