A friendly cartoon face is assembled from basic SVG shapes, with animated eyebrows that rise and fall. The example demonstrates reusable geometric primitives and declarative transitions in D3 v6. It uses `d3.select` and `d3.arc` to construct the mouth, while circles and rectangles define eyes and brows. The `transition().duration()` chain animates the eyebrow group’s transform attribute over two sequential two-second phases. Rendering targets an SVG canvas, with styles and layout handled by CSS.