A stylized smiley face built with React and D3 renders as a yellow circle with black stroke, two eyes, and a mouth. The face is constructed from reusable React components, with D3’s `arc` generator creating the mouth’s curved path. All shapes are drawn as SVG elements inside a centered `<g>` transform, using fixed numeric values for positioning and radii. The code organizes components for the background, eyes, mouth, and face container, with no external data—only hardcoded geometry. This example demonstrates modular component composition and D3’s shape API within a React rendering pipeline.