This example shows a simple, animated face built entirely with SVG shapes. D3 selections are used to create a yellow circle for the face, smaller circles for eyes, rectangles for eyebrows, and an arc path for the mouth. The right eyebrow animates up and down using chained `transition` calls with a 2-second duration. The visualization demonstrates fundamental D3 v5 concepts like data joins, attribute manipulation, and SVG rendering within a React environment.