Create an illustration in a loose, sketchy style with minimal detail, similar to the provided image. The scene depicts a cozy, aged room with a window showing heavy rain outside. The window is covered with raindrops, creating a nostalgic and serene atmosphere. Ensure the room has a lived-in feel, with old furniture and a warm, soft light illuminating the space. The color palette should be muted and warm, enhancing the sense of comfort and calm.