Evening Indoor Portrait Prompt

Ultra-realistic cinematic 9:16 portrait photograph of a young South Asian man with naturally curly, voluminous black hair, realistic facial features, sharp jawline and natural skin texture. He is sitting indoors beside a stainless-steel staircase railing, in the exact composition and pose of a casual Instagram fashion photograph. He is wearing a deep burgundy/maroon lightweight zip-up jacket with elastic cuffs over a plain black T-shirt, paired with dark black jeans.His hands are naturally resting together near his lap. His body is slightly angled while his face is turned toward the left side, looking away from the camera with a calm, thoughtful and slightly serious expression. Behind him is a large floor-to-ceiling glass window with dark brown vertical frames. Through the glass, show a soft pink and muted blue evening sky, distant green trees, subtle power lines and an urban outdoor view.Reflections of warm indoor ceiling lights should naturally appear on the glass. Warm ambient indoor lighting mixed with soft dusk light, realistic shadows, subtle warm color grading, natural skin tones, cinematic depth of field, authentic smartphone photography, slight film grain, detailed hair texture, realistic fabric folds, candid Instagram aesthetic, balanced composition, photorealistic, high detail, no artificial-looking skin, no excessive retouching.Vertical 9:16 composition, full upper body to thighs, subject positioned slightly toward the lower center of the frame, large amount of atmospheric window space above him. Insert discreet watermark in the lower right corner of the image, vertical text (rotated 90°), written "aipromptlabs.online", Calibri Light font, white color with low opacity (semi-transparent), medium size. Extreme sharpness on the face, fabric texture and typography of the letters. Shot on Canon EOS R5, 50mm f/2.8, studio light.