Thanks for playing and the feedback! Breaking up the tutorial is definitely something I'm going to look into. The co-pilot part is described in the cargo tutorial but it would probably be better to break it off into either a travel tutorial or its own co-pilot tutorial once you get one.
The game is definitely a bit of a create your own fun experience like Animal Crossing, so the items are really there for people who enjoy customizing their ship to fit the look they want rather than being a crucial component. I'll take a look at fixing up the music and trying to make each location a bit more distinct. I'm planning to do a dialogue pass with NPCs too to help fill in some of the blanks about what each area is.