THIS IS THE CONTINUATION OF THE PROJECT:
It always takes a little time until I finish my works, but I finally made it.
From my last post, the next step was painting the background, clouds, mountains, rock, etc.
Then I had to create back spikes from silicone, since the led strip from the back had still to be visible through the spikes. I added also the electronic parts: light resistor on the right wing, proximity sensor on the nose, side uv led strips and 2 blue leds in the mouth.
Finally the painting looks like this: