Create a hyper-realistic 8K vertical portrait of a woman sitting relaxed in a modern studio setting. She is dressed in a black turtleneck sweater and black leather pants that fit her form perfectly, creating a sleek and stylish silhouette. Her shoes are black, pointed stilettos, adding a refined touch to the outfit. She sits comfortably in a black leather armchair, with her arms resting casually on the chair’s sides. The backdrop is minimalistic, featuring a white cyclorama that creates a seamless, clean background, emphasizing the model and her elegant pose. The lighting is soft yet precise, accentuating the textures of her outfit and the leather of the chair, creating a calm, intimate atmosphere. The composition should focus on capturing the relaxed yet confident mood, with the lighting highlighting the natural, effortless elegance of the scene. The image should feel natural, as if caught in an unposed moment in a professional studio.