Ключевые слова: 21, animal, bird, blue, branch, celebration, concept, day, design, dove, drawn, earth, faith, flat, flight, fly, freedom, globe, hands, holiday, hope, illustration, international, leaf, line, modern, nature, olive, peace, peace day, peaceful, pigeon, plant, poster, purity, september, shapes, sign, silhouette, sky, spirit, spiritual, symbol, symbolism, traditional, white, wing, wings, world,