The planets are not drawn to scale compared to the stars and orbits (you wouldn't be able to see them if they were), and the stars aren't located this close together in real life. Still, you can see the relative size of the planets as well as an estimate of their temperatures. The animation also underlines something Kepler taught us: that our solar system isn't the standard model for the galaxy. Before Kepler, scientists thought that other solar systems would be shaped like ours, with small rocky planets on the inside, icy planets on the outside, and gas giants in between. Now we realize that solar systems come in all sorts of shapes and sizes.