The owl with the closed eyes symbolizes mankind. We are all the same; inwardly we want a clean world, but we close our eyes to all the pollution around us. Therefore, our inner is represented by the owl’s belly where everything is pure; the air, water (sea) and earth (dunes). Even the birds enjoy it.
All around us we increasingly pollute the environment with factories, power plants and chemical products. This means that in each of us a little devil exists represented by the devil secretly polluting the air at the top of the piece. He eats the trees, which represent the rich production of oxygen and he breathes out smoke, which stands for CO2.