Ключевые слова: abstract, background, blue, calm, circle, circular, clear, closeup, concentric, concept, conceptual, drink, drip, drop, droplet, ecology, environment, fall, falling, filter, float, floating, flow, fluid, frozen, geometric, icon, idea, liquid, macro, moment, motion, natural, nature, pattern, pure, purity, rain, raindrop, ripple, rippled, ripples, serene, serenity, splash, suspended, synergy, time, water, wave,