Oriental ancient costume black silk stockings portrait

[Visual Goal]
9:16 vertical version, realistic live-action Oriental ancient costume full-body portrait, an explicitly adult Oriental beauty around 25 years old sitting on the floor of a classical boudoir in a natural W-shaped sitting posture, the soft contrast between classical clothing and modern black silk stockings, overall pure, charming, and restrainedly sexy.
[Character]
Tall and well-proportioned figure, slender limbs, exquisite and natural features, retaining authentic Oriental female characteristics, not an internet celebrity face, not Westernized; skin is delicate and real, retaining natural textures.
[Expression]
The character looks up at the camera, her eyes clear with slight shyness and mature charm, lips naturally slightly parted, expression relaxed and natural, presenting a faint sense of pure desire, no deliberate seductive smiles, no exaggerated teasing.
[Action]
Knees naturally spread to both sides of the body, calves folded backward to form a natural W-shaped sitting posture, hips firmly on the ground, upper body slightly leaning forward or slightly tilted to the side; one hand naturally supporting on the side, the other hand lightly placed on the side of the leg or tidying the skirt hem, movements soft and not stiff.
[Clothing and Figure]
Wearing a light and sexy ancient costume long dress, the fabric is mainly silk, chiffon, and soft satin, the skirt naturally parted to reveal legs fully wrapped in black translucent silk stockings; chest size approximately B to C cup, chest shape naturally rounded, between shallow teardrop and natural hemisphere, retaining softness and a sense of natural gravity, no exaggerated gathering, no prosthetic feel.
[Hairstyle]
Black long hair naturally draped, part of the long hair falling over the shoulders, a few strands of hair lightly touching the cheeks and chest, paired with simple ancient-style hairpins and small bead ornaments, not overly gorgeous.
[Scene]
Classical Chinese-style boudoir, wooden floors, gauze curtains, screens, and warm-colored lanterns as the background, the environment is quiet and elegant, the background moderately blurred, not overshadowing the main character.
[Camera]
Full-body composition, character's face, legs, and complete sitting posture are all clearly visible, camera angle slightly lower than eye level, 50mm portrait lens feel, realistic perspective, no exaggerated leg length, no deliberate highlighting of specific parts.
[Lighting and Texture]
Soft natural window light enters from the front side, forming realistic light and shadow layers and slight skin highlights, maintaining a real camera photography texture, no beauty filters, no plastic skin, no excessive soft focus.