Ключевые слова: 3d illustration, alternative, brick wall, choice, conceptual, contour, copyspace, creative, echo, ecological, ecosystem, efficiency, electricity, energy, environmental, future, glitter, global, glowing, idea, illuminated, innovation, lamp, leaf, life, light, lightbulb, neon, outline, planet, planet earth, power, product, purple, recycle, renewable, resource, save, simplicity, sustainable, technology, wall, whiteboard,