Create a high-resolution, photorealistic image of a confident, mature woman in her 50s or 60s modeling elegant lingerie in a tastefully decorated bedroom. The woman exudes poise and self-assurance, with a gentle, warm smile. She is wearing a sophisticated lace lingerie set in a rich, jewel tone that complements her skin. The bedroom features modern, minimalist décor with a neutral color palette, including a plush bed with crisp white linens and soft, ambient lighting. A large window with sheer curtains allows natural light to filter in, highlighting the room's elegance. The woman poses gracefully near the window, with an air of relaxed confidence. Fresh flowers in a vase on a bedside table add a touch of freshness and femininity. The overall image should evoke a sense of beauty, confidence, and the timeless elegance of mature femininity.