Avoid including any people or animals in the image, as they would detract from the focus on the invisible hand and the London Bridge. The image should not be too cluttered or busy, with a clean and minimalist composition that emphasizes the hand and the bridge. Avoid using overly bright or bold colors, as they could detract from the sophisticated and contemplative mood of the piece. The image should be well-balanced and harmonious, with no unwanted artifacts or distortions that could detract from the overall effect. Finally, avoid any overly stylized or abstract elements that might clash with the realistic style of the piece.