A stunning, photorealistic portrait of a tall, mature, curvy woman standing upright in a festive, colorful Christmas-themed setting. She faces the viewer in a graceful front view, her fair skin glowing under soft, omni-directional holiday lighting that casts even, flattering illumination from every angle. She wears exquisite white lace lingerie with delicate holly and mistletoe embroidery, the intricate patterns hugging her curves. Her hair is a luxurious cascade of mid-length, loose waves in a vibrant crimson red, tumbling past her shoulders and catching the light with every subtle movement. Her almond-shaped green eyes sparkle with joy and warmth as she offers a gentle, inviting smile. Behind her, twinkling fairy lights, vibrant red and green ornaments, and a beautifully decorated Christmas tree create a playful, colorful backdrop. Through a frosted window, soft snowflakes drift past, adding a magical winter ambiance. The overall scene is fun, elegant, and richly detailed, capturing the spirit of the holidays in a single, eye-catching frame.