The Arduino is work with out L298N red board, because so far all the things is very normal work only can do it, and also doesn't use dc motor any more.

Next is design of the boxes that need to show out the shadow of figure, so the box is use bigger one and cut out the square hole back side and front side,and the front side is stick with tracing paper to be a screen that show the shadow, back side is  erect one light bulb tube  and the light bulb is using 1200l so the power of light is very high.

The following is showing the shadow when the light bulb is on, can clearly to see the shadow but have a layer of the side, and also the servo motor on the mouth is obvious, so this maybe need to find the way or idea to solve it.