Thank you, Kevin.
Actually the corridors are content that I'd purchased from the Reallusion Content Store, part of the Sci-Fi Interiors package. Some setups were inspired by certain actual sci-fi movies and shows. For example, the window that the Command Centurion is standing in front of was clearly inspired by the Star Destroyer bridge windows from The Empire Strikes Back.
They also have a Starship Construction package that has some parts inspired by Star Trek, Star Wars, and Buck Rogers in the 25th Century.
The ships I've been doing lately though have been completely fabricated by me in Blender.