This example uses D3.js to draw a simple cartoon face with SVG shapes. A yellow circle forms the head, with two smaller circles for eyes and rectangles for eyebrows, all positioned relative to the center of the SVG canvas. A mouth is created using the `d3.arc` helper to generate a curved path. The eyebrows animate with `transition.duration`, moving down and back up over two seconds, demonstrating basic SVG rendering and animation capabilities in D3 v5.