I cut out the design in plywood and glued pieces of wood along the back to support the LEDs. I then glued an LED strip along the inside and outside of the support on the back. As of right now when I put the sign against a wall the LEDs don’t diffuse as much as I wanted and you can see the individual lights.

I was wondering if there is a way I could mount it so that it would sit farther away from the wall or if there was a way I could diffuse the lights so that they look softer.