Generally excellent. Where the first book was broad, with multiple locations and times, the second one goes deep, diving into the political minutiae of a single system. And it works, drawing us further into the world of the Radch.
Three things I learned about writing:
- Be careful of "I knew that she suspected I thought I knew about this lie that she told me three days ago" plots. Unless your narrator is very explicit about their thoughts, you can lose the reader in too many significant looks that aren't explained.
- If a cool gimmick from the first book isn't available (lost because of story), instead of bringing it back (and reaching for a retcon), try to find a different way to achieve the same thing. Here, the data relayed to the narrator by Ship gives us the ability to view scenes we wouldn't otherwise, preserving the narrative trick of the first book by a different means.
- For a sequel, you might be tempted to go broader than the first book (especially if the story of the first book was epic in scope already). But you don't have to. A smaller scope can work just as well to let you show who your characters are, and deepen their relationships.