Everyone starts off DMing at the level of a drunken weasel or more likely, worse. The only way to get better is to try. If you make it clear this is your first time, people will go easy on you.
I sorta think the cheesy names are a given, really, considering the pulpy feeling of it.
1) Is the Spider Silk nebula literal, or figurative? I sorta imagine giant space spiders would put a damper on things for most people. Maybe a race lacks an instinctual fear of bugs because they evolved from an insectivore?
2) Why are the honest merchants here? I'm not saying that it is impossible for them to be there, but I feel like there needs to be a reason, be it a good location, favorable laws, or that's where customers just go.
I feel like the idea of a mere pleasure planet is beneath the God-Emperors. It's not a pleasure planet, it's a carefully maintained idyllic farming world growing the best food and supporting several blossoming communes of artists and writers. Not sure what to call it, but Pleasure Planet makes me think of Risa.
What shape is the tree in? I think you could go a lot of different ways with that and explain how people are standing on the trunk.
Needs more. Perhaps it too is a farming colony? See, retired Quetzalii come here. Few retire, but those who do are encouraged to take up a life of quiet, humble work. Also, prisoners are brought here for redemption to keep them away from temptation and escape. Give them some good ol' work on a nice farm! That's the ticket.
Why are the artifacts there? I think some basis for them to have a lot of neat stuff helps sell the idea of treasure hunting here, also because the party will meet someone in the bar with a yarn to spin about some fabulous macguffin or another.
Other then information about the event (who is the blame, who is blamed, what happened in the aftermath, why was the weapon used, etc). I see nothing wrong with this place, other then a little more description. Who made it? What did it look like?
I for one, would like it if this mystical place of healing looked like crap. Oh, it's comfortable enough but it was designed by a well-meaning but inept architect. Maybe some architectural feature they put in allowed the Moldies to spread, such as improper insulation.
Not much to say about these two, as they seem like good plot hooks. The former would be a race against someone else to get an important doodad, and the later is punching some sort of flame-demon. Sounds good to me, if more high-level. I think some lower level threats and worlds are needed.
I like this idea. The party could crash land on one and reenact the Ewok scene...
Skipping this since I assume it is the same Malebolge.
Flammenkyrpt (Brandtibur?) has a magical demon/eldritch horror/old god encouraging pyromancers to vacation there. This world has something similar except that it increases empathy with one's 'tribe' and decreases it for outsiders...I'd find it hilarious if this fact basically kept the place in the stone age because people kept building armies to attack other people, but maybe I've been watching too much Star Trek.
This however, reminds of the Red Dwarf episode Meltdown, where andriods of famous people of history fight each other for the amusement of an assumed audience. Maybe this world gets bombed every so often back to the stone age so visitors can wander around the place in bodies from the world (just psychically hijack whatever you want!) to enact their military stories without that pesky issue of dying.
Could also be the tourist destintation for people wanting to body-jack things to play out stories and the like. Another idea is that someone from an advanced race has been farming either the people or a resource from the planet. They decided to show up every so often as a god to get what they want, have some parties, sleep with some wenches and depart. Could be Aelfar to explain a lot of Loki's behavior...
Also, we got three barbaric planets roughly corres
A silly twist: The life frorm that might lead to intelligent life find the Paxians inherently tasty. The Paxians are still committed to coaxing this race despite a few incidents, because they don't want to condemn an entire race for the actions of a few.
You know, you have two medieval planets, a bronze-age/stone age planet, and a renaissance planet. What if one of them was more technologically advance? As a bit of tongue-in-cheek, one of them has technology comparable to the 1980's or the 1940s'.