A React-based SVG renders a yellow smiley face with a green stroke, combining a circular head with custom eye and mouth components. The composed SVG uses React components (`Eyes`, `Smile`) positioned and scaled via SVG `g` transforms within the main `App` component. The eye and mouth artwork is drawn with detailed SVG paths, ellipses, and circles, colored by CSS classes defined in `style.css`. The visualization demonstrates programmatic SVG assembly using React 16.9 and `ReactDOM.render`.