A large red circle forms the base of a smiley face, with two smaller unfilled black circles positioned as eyes. The SVG circles are drawn using the `circle` element, with explicit `cx`, `cy`, `r`, `fill`, `stroke`, and `stroke-width` attributes. The rendering uses static SVG markup within an HTML page, with the main circle centered at (480, 250) and a radius of 245. The eyes are offset horizontally from the center, creating a simple, unfinished facial composition as noted in the README.