Раковина наутилуса — вариант 1

Use case: product-mockup. Use the supplied image as the exact reference. Create one isolated transparent PNG of one elegant nautilus shell, clearly showing its coiled spiral, cream shell walls, fine warm-brown radial stripes, and large open chamber on the right. Explicit color: warm ivory-cream with caramel and chestnut-brown striping and subtle pearly highlights. Pose and angle: shell facing camera in a three-quarter view, spiral center visible near center-left and aperture facing right. Framing: close-up macro product photograph, whole shell centered and filling about 75–80 percent of a square canvas with transparent padding. Preserve smooth polished shell texture, layered inner chamber and soft diffuse upper-left lighting. Make the brown stripes moderately richer and more defined, with a slight honey tone, while retaining the same cream nautilus identity. True alpha transparency around and inside the aperture; no water, sand, floor, backdrop, cast shadow, text or other objects.