A grid of forty-five yellow smiley faces renders in React, each built from reusable components for the background circle, eyes, and mouth. The faces use an SVG `<g>` transform to center coordinates, while the mouth is drawn with `d3.arc()` to create a semicircular path. React props control face dimensions, eye offsets, and stroke width, and `range()` from d3 generates the repeated array of faces.