Curves in cheapest Motion

I just made this 3-D stained glass piece using copper foil and solder. The look of the pieces change as they turn and each of the 3 pieces turns separately. I have it hanging outside right now and the wind turns the larger piece differently from the 2 smaller pieces. When viewed head on the larger piece almost disappears and all you see is the curves of the 2 smaller pieces. The last2 pictures cheapest are close ups of one of the smaller pieces.