This example builds a stylized smiley face in SVG using React and D3.js v7. The face is composed of D3 arc generators for the mouth, nose, and tongue, alongside SVG circles and lines for eyes, eyebrows, and limbs. A pink circle with a green stroke forms the head, centered within a 960 by 500 viewport. The code demonstrates composing React components with D3’s arc API and SVG primitives, using static coordinates and no data binding.