Ключевые слова: 2015, alternative, art, background, building, butterfly, calendar, car, clean, clip, concept, date, day, drawing, earth, eco, ecologic, ecology, electric, energy, environment, environmental, family, globe, graphic, green, happy, house, illustration, kids, leaf, map, new, organic, person, recycle, recycling, renewable, sign, symbol, texture, tree, veins, water, white, world, year,