A clean, minimal studio setting with a soft warm beige backdrop that transitions subtly in tone without visible texture or props. The background remains smooth and uncluttered, creating strong subject separation and a refined, fashion-editorial atmosphere. The overall mood feels confident, sensual, and premium, with a warm, sunlit color palette and gentle tonal gradients. A tight, intimate close-up framed in a square 1:1 format, cropped from just below the nose to the upper chest. The camera is positioned straight on at neck and collarbone level, with a slight downward perspective that emphasizes the neckline and jewelry. The composition centers the necklace along the horizontal axis of the frame, with balanced negative space on both sides and shallow depth of field that keeps the necklace and skin sharply defined while the background falls softly out of focus. A human model shown from the lower face to the upper torso, with lips slightly parted and the face partially cropped to remove the eyes. Both arms are raised behind the head, creating a natural opening of the chest and elongation of the neck. The shoulders are relaxed and slightly drawn back, allowing the collarbones and upper chest to catch light naturally. The model wears a black, deep V-neck garment with clean edges that frame the necklace without competing for attention. A single necklace worn snugly around the base of the neck in a choker-like position. The chain follows the natural curvature of the neck, resting evenly along the collarbones with realistic weight and subtle asymmetry. The necklace sits flush against the skin with visible contact shadows, gentle pressure cues, and slight indentation where metal meets flesh. The chain shows natural micro-variations in tension and curvature, never floating or appearing rigid, and integrates naturally with the exposed skin and neckline of the garment. A strong, directional key light enters from the upper left, casting crisp yet soft-edged shadows across the neck and chest. The lighting creates pronounced highlights along the top edges of the chain links, with smooth brightness falloff across the metal surface. Shadows are warm and well-defined, shaping the neck and collarbones while preserving skin texture. The metal exhibits realistic reflections of the surrounding environment, with accurate specular highlights, subtle shadowing between links, and a polished but not mirror-like finish. The inserted necklace product is preserved exactly as it exists in real life, including true shape, proportions, chain thickness, length, clasp design, materials, metal type, surface finish, engravings, markings, and any fine details, all remaining sharp and unchanged. No additional decorative elements, symbols, or motifs are introduced beyond what is visible in the scene. The necklace must never appear floating, pasted on, overly stiff, or mechanically centered. The image is rendered as a photorealistic 4K square 1:1 studio-quality photograph, matching the warm, editorial, luxury tone and visual logic of the reference image.