a 40-year-old man sits on a leather sofa playing an acoustic guitar. his dark stubble and wrinkles at the corners of his eyes are sharply defined. warm natural light streams in from the window on the left. ultra-high-definition 8k resolution reveals the wood grain of the guitar and the calluses on his fingers. the backdrop features warm-toned wooden walls. a shallow depth of field highlights the subject, creating a realistic cinematic style. the scene radiates an atmosphere of mature focus.