This example renders a cartoon smiley face using React and D3 v7, composed of SVG shapes. It shows a pink circular head with black stroke, detailed eyes with layered white and black circles for highlights, eyebrows created with arc generators, ears, and a smiling mouth. The code uses D3’s `arc()` generator to define the mouth, lips, and eyebrows, while React components build the SVG structure. A custom red tongue path and static circles complete the face, with all elements positioned relative to the center coordinates.