Avoid using bold or bright colors, as they can detract from the peaceful feeling of the artwork. Instead, opt for soft, natural colors like greens, blues, and browns. Avoid using any harsh or angular shapes, as they can create a sense of tension or anxiety. Instead, use organic shapes like curves and circles to create a sense of flow and harmony. Avoid including any man-made objects or structures, like buildings or vehicles, as they can break the immersion and take away from the natural setting. Focus on capturing the beauty and tranquility of nature in its purest form.