(masterpiece, best quality, ultra detailed, 4k, artistic portrait, dynamic lighting), Svenja (20 years old, reddish-brown hair cascading, intense yet passionate hazel eyes, a slight furrow of concentration), using the provided reference face for Svenja. She is seated, playing an acoustic guitar. Her fingers are positioned on the fretboard. The background is a blurred, warm-toned room, perhaps with some musical instruments or books. She is wearing a simple t-shirt or tank top.