spiral, Fibonacci sequence, golden ratio, mathematical concept, nautilus shell, sunflower head, pine cone, fractal pattern, nature-inspired, close-up, macro photography, soft lighting, detailed texture, organic structure, mathematical beauty, harmonious proportions, natural symmetry, elegant design, ambient light, outdoor setting, mathematical illustration, vibrant colors, educational visual, artistic interpretation, golden spiral, logarithmic spiral, natural pattern, 3/4 composition, focused subject, blurred background.