A yellow circle with black outline and a smile-shaped arc form a face, complete with two eyes and rectangular eyebrows. The eyebrows animate by translating up and down over two-second intervals using chained `transition` calls. Built with React and D3 v6, the visualization renders purely as SVG elements (circles, rectangles, and a path) styled partly through an external CSS file. The code explicitly sets SVG dimensions, uses `d3.arc` to generate the mouth path, and applies transforms to position facial features.