I tried several times to assemble in parts as Ken did, I did not like this installation. Assemble all panels and walls into one large piece.
While I put it on dry.
The outer side of the skin had to be painted, because bandings appeared during printing.
4 smd 5050 LEDs in the main panel are installed on the front and lits the rear internal wall, this gives a more uniform diffused light. The back wall is also painted in skin color, since the glow temperature of these LEDs is too cold, and gave off a blue tint. After changing the color of the back wall, the light became more warm and not so blue.
And of course, how could it be without a lighting test! Here you can see the temperature difference between the LEDs, they were from the same batch, and were in a row in the package, if it works out, I will replace it, if not, I will leave it like that. But this difference is not visible with the eyes, so I'll still think about whether it is worth changing one LED.