This example draws a simple yellow face in an SVG canvas, centered within a 960 by 500 viewport. The face features two crossed-line eyebrows above each eye and a curved mouth created using the `d3.arc` path generator. The entire composition is built with D3 v5 selection and shape APIs, using basic SVG elements like `circle`, `line`, and `path`, all rendered through React’s `bundle.js` output.