Three identical cartoon smiley faces are rendered in a row, each with a yellow circular head, black-outlined eyes, and a curved mouth drawn using a d3.arc path. The React components `Face`, `Body`, `Eyes`, and `FaceContainer` compose the SVG, with each face generated by mapping over an array from `d3.range`. Hard-coded measurements for radius, eye offsets, and mouth angles define the static facial features, while the `stroke-width` and fill colors are passed as props.