Design a sophisticated adult coloring page that illustrates "Farmers at Work". The scene should showcase farmers in their fields, diligently tending to their crops. Incorporate iconic farm elements, such as a scarecrow, a plow, and haystacks. Ensure the illustration is done with clean, minimalistic lines, capturing the serene atmosphere of the countryside. The perspective drawing should bring depth to the farmlands and focus on proportional drawing techniques to emphasize the vastness of the fields. Avoid clutter and opt for a balanced composition that draws attention to the central theme. --ar 3:4 --v 5.2