Prompt
"Generate an image of a serene river flowing through a picturesque English countryside, with a notable bridge in the background. The River Witham, located in Lincolnshire, England, should be depicted in a realistic style, showcasing its tranquil atmosphere and surrounding landscape. Include subtle hints of its 132 km length and navigable features, such as the Witham Navigable Drains and Grand Sluice. The image should capture the river's passage through Lincoln and Boston, with possibly a glimpse of the High Bridge, Lincoln, or Boston Town Bridge in the distance."