A simple SVG face built with D3.js v5 animates its eyebrows in a looping transition. The face comprises circles for the head and eyes, rectangles for eyebrows, and an arc-generated path for the mouth, all centered via a translated group. D3's `select`, `arc`, and chained `transition` methods drive the rendering and the two-second eyebrow raise-and-lower cycle. The example demonstrates basic SVG shape construction and declarative animation without external data.