Ultra realistic smartphone portrait for music lovers

Ultra-realistic smartphone portrait of a young woman sitting cross-legged indoors while playing a black acoustic guitar. She is wearing the same t shirt and a black trouser. Same hairstyle her forehead as she looks down at the guitar with a calm, focused expression. Soft warm indoor lighting, plain cream-colored wall background, natural shadows, candid pose, realistic skin texture, authentic mobile camera quality, slight grain, minimal depth of field, photorealistic, 8K, vertical 9:16. Don't change the face 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.