A yellow smiley face is drawn with D3.js using SVG shapes, including a circle head, two eyes, eyebrows, and an arc-based mouth created with the `d3.arc` helper. The eyebrows animate by chaining `transition().duration(2000)` calls to move them up and down repeatedly. The code demonstrates foundational DOM manipulation, selecting the SVG element with `d3.select`, appending groups and shapes, and using transforms to position features relative to the canvas center. The face is rendered entirely with static SVG attributes, with no external data source.