Realistic Vertical Portrait on Windowsill

Create a realistic vertical 9:16 photographed portrait. Subject and action: Reclining across the windowsill, eyes open and gazing upward toward the raised hand, lips gently parted, facial muscles relaxed. Hair and styling: Render an adult woman's hair as a chin-length rounded bob with a brow-clear side fringe, in black with a faint warm undertone, only within jaw-to-collarbone bob, lob, or compact-tie geometry. Composition: Vertical side-on medium-full portrait from head to upper thighs, body stretched horizontally across the lower third; head near the lower-right corner, hips and legs cut off by the left edge, raised hand reaching into the bright upper-center negative space. Pose: Lying on her back with her head turned slightly toward camera-right and resting directly on the sill; torso angled from lower-left to lower-right; One arm reaches diagonally upward with the elbow softly bent, wrist flexed and fingers loosely separated; the other arm bends above the face with its hand resting across the forehead and touching the hairline; The abdomen is slightly arched, one knee is loosely raised beyond the cropped left edge, and the hair spreads physically. Wardrobe: Oversized white button-front shirt worn open and loosely draped, with long sleeves wrinkled and bunched naturally at the bent elbows and cuffs; black lace bralette visible beneath; black low-rise bottoms visible at the cropped left edge; small plain hoop earring; Barefoot, with no bag or other. Setting: She lies on a broad worn wooden interior windowsill in front of tall old multi-pane windows with chipped cream paint and exposed brown patches; The exterior is reduced to faint pale building shapes through severely overexposed glass. Lighting: Strong soft daylight backlight through the windows, exterior highlights blown nearly white, gentle warm reflected light on the face and body, subdued shadows, no artificial fill. Finish: Muted warm consumer color-negative-film finish with a slight beige cast, low-to-moderate contrast, softly lifted blacks, restrained saturation, fine visible grain including faint grain and natural pores on the skin, gentle edge softness, and smooth highlight roll-off that still allows the window exterior to clip. Rendering constraints: keep the exact crop, body-to-camera relationship, hand task, gaze direction, light direction, foreground obstruction, and background placement; preserve believable anatomy and natural hands; avoid beauty-filter skin, studio-clean restaging, generic fashion posing, text, logos, borders, and watermarks.