This interactive React and D3 visualization renders a smiling face constructed from modular SVG components, including a yellow background circle, two eyes, and a curved mouth. The components are defined in separate ES6 module files, with the mouth shape generated using D3’s arc generator to create an arc path. All elements are positioned within a single SVG canvas, centered via a group transform, and rendered by React. The example demonstrates how to structure reusable React components for D3-based visualizations.