A yellow circle forms a face, with two black eyes and a wide arc-shaped mouth. The eyebrows, rendered as rectangular bars, animate upward and then back down in a looping motion. Built with D3 v6, the visualization uses SVG elements and D3’s `transition()` method to adjust the eyebrow group’s transform attribute over two-second intervals. The face is centered using a translation on a group element, with the mouth created via the `arc()` generator.