You got the order wrong on 7 and 8, but you mention it correctly on your comment. 🙂
Pluto is no longer a planet, or you would need to include Eris. Ceres is smaller but you could add it as well. Many moons are bigger than the dwarf planets and there is no planet X. I saw the Halley Comet, but will probably be dead next time it is around. I like Saturn, apparently Mr. Gustav Holst.. not so much. Titan is a very special moon.