Two smiling eyes and an arched mouth complete a yellow circle, producing a simple cartoon face. Built with React components and rendered as SVG, the example composes a background circle, offset eye circles, and a mouth path generated with the d3 `arc` generator. The d3-shape `arc` function creates the mouth’s curved outline, while React’s component structure passes fixed coordinate values for eye offset and mouth dimensions. The face is centered via an SVG group transform, with nested components defining each facial feature.