Very good comet with atmosphere. The name is also good. The images are also a good inspiration for people that want to add asteroid belts. Also the planets and moons images are very unique. Excellent work!
Your system is interesting because have Earth-like and many other moons orbiting gas giants. The clouds and rings of Panthalassic world are very beautiful.
I think that your system would be more interesting if it had a browndwarf or a small red star with one or more planets. Or you can add a big or small rogue planet. I reccomend you create a rogue planet with about a radius of 13000 Km (Bigger than Earth and smaller than Neptune), and this planet must be very very distant to it's star. Or add a pluto-sized planet. But without these things I mentioned your system is still excellent for me.
PS: I'm doing a new system ( I didn't choose the name yet ), a binary star system, that have some interesting planets. And have a small asteroid belt.
One day we will swim in the subsurface ocean of Europa and take shower in ethane lakes of Titan.