Create a high-resolution, photorealistic image of an elegant, mature woman in her 50s or 60s modeling sophisticated lingerie in an upscale, contemporary bedroom. The woman exudes confidence and grace, with a warm, natural smile. She is wearing a stylish, lace lingerie set in a deep, rich color that complements her skin tone. The bedroom features modern décor with clean lines, a plush bed with luxurious bedding, and soft, ambient lighting that creates a serene atmosphere. A large window with sheer curtains allows natural light to filter in, highlighting the room's details. The woman poses confidently near the edge of the bed, with an air of relaxed sophistication. Fresh flowers in a vase on a bedside table and tasteful artwork on the walls add to the room's refined elegance. The overall image should evoke a sense of self-assuredness, beauty, and the timeless elegance of mature femininity.