A React-rendered SVG smiley face is drawn with a yellow circular head, black stroke outline, white eyes with green and purple pupils, and a curved mouth created using the `d3.arc` API. Additional black lines form eyebrows, eyelashes, and hair, positioned symmetrically around the center. The visualization uses D3 v7 for the arc path generation and ReactDOM for rendering the SVG elements into the root div. Static, fixed coordinates define all shapes rather than any data-driven layout.