This example uses D3.js v5 to construct a cartoon face from basic SVG shapes. It shows a yellow circle for the head, two eyes, eyebrows, and an arc-based smile, all positioned relative to the SVG’s center. The code leverages D3 selections and the `arc` generator to define the mouth path, while attributes like `cx`, `r`, and `transform` place elements. The face is rendered purely in SVG within a React framework, with no external data source.