A cheerful yellow face with black outlined features fills the SVG canvas. The composition centers a circle for the head, two dark eyes, and a curved mouth drawn with D3's `arc` generator. Animated eyebrows, rendered as rectangles, move up and down in a looping sequence using D3's `.transition().duration()` API. The example demonstrates basic shape construction and animation sequencing within a 960 by 500 pixel viewport, with all elements grouped and positioned using SVG transforms.