This interactive visualization assembles a smiley face from modular React components, combining a green-to-yellow gradient background circle with eyes, a mouth, and teeth. Built with React and rendered as SVG, the face uses D3's `arc()` API to draw the mouth and teeth shapes as annular sectors. The teeth are further detailed with black line elements of varying heights, creating a stylized, playful appearance. The face’s dimensions and features are parameterized through props, allowing for easy customization of size, positioning, and component attributes.