A drawing that looks like it was created by a 5-year-old child, depicting a castle. The artwork should be simple and imaginative, with basic shapes such as rectangles for the walls, triangles for the roof tops, and uneven circles for the windows. The drawing should capture the whimsical and unrefined style typical of young children's drawings, with exaggerated features like a large door or flags on the towers. The image should be in black and white, reflecting the creativity and innocence of a child's interpretation of a medieval castle. --v 6.0