This example renders a smiling face using React and D3, composed of a yellow background circle, two eyes, and two layered mouths created with D3’s arc generator. The SVG drawing is centered within a 1000x500 viewport, with all shapes positioned relative to a central translation. The code demonstrates a simple component-based approach where each facial feature is a separate React functional component, and the mouth arc path is generated imperatively via d3.arc(). The file includes comments from collaborative development, though no interactive cursor presence is implemented.