Ключевые слова: abstract, background, circle, circular, classic, collection, concentric, curve, cycle, decoration, decorative, design, effect, fine, geometric, graphic, hypnosis, hypnotic, icon, illusion, illustration, isolated, line, modern, optical, ornament, pattern, psychedelic, radial, rotation, round, set, shape, sign, simple, snail, spiral, spirals, swirl, symbol, texture, thin, twirl, twist, vortex, whirl, white,