Create a 3D model of a woman in her 70s from today's era, embodying simplicity and everyday life. Ensure she has side bangs and her hair is tied in a loose ponytail, giving her a relaxed and approachable appearance. Dress her in a V-neck t-shirt and three-way jeans, paired with flip-flops, reflecting a casual and modern style. Position her in a neutral, upright stance with both legs straight and parallel, both arms at her sides, and her face looking forward. The pose should be simple and mannequin-like, without any dynamic or exaggerated posture. Visualize her against a monochromatic background, maintaining a grayscale aesthetic to enhance the sculptural quality, resembling an unpainted model. Ensure the overall design conveys her simplicity and everyday nature, making her relatable and realistic as a contemporary elderly woman.