A photo-realistic, 3d rendering of an empty room with large windows and light-colored walls, featuring white curtains and tiled floor. the room is well-lit with natural light coming through the large window on the left, casting long shadows on the floor, creating a bright and airy atmosphere. the walls are painted in a light beige color, and the floor is tiled in a neutral color. on the right side of the room, there are two large windows with sheer white curtains, one on each side, allowing natural light to filter in and illuminate the room. The room is empty, with no furniture or decorations in sight, and no other objects in sight. the overall atmosphere is peaceful and serene, with a sense of calm and tranquility.