Create a vibrant and festive photo of a young woman celebrating her 49th birthday in a cozy, well-decorated room. The woman should be wearing a stylish red tracksuit and holding a beautifully decorated birthday cake with lit candles. Surround her with large red balloons spelling out '49' and additional heart-shaped red balloons. Include bouquets of red roses and various gift boxes scattered around the room. The room should have a modern and elegant design with light-colored walls and wooden flooring. Ensure the overall atmosphere is joyful and celebratory.