I agree with Mary about Pirates. But Poison and Storm Thief definitely fit the trend, as I see it.
As for Stravaganza, I had only read the first book when I started this thread. The city struck me as dystopian, and there were elements that fell within my own (rather broad) definition of Steampunk, which can embrace the Baroque as well as the Victorian.
But the Steampunk border is fluid. My own Goblin Moon seems to float from one side of that border to the other, depending on who is defining the term, and it seems to me that Stravaganza occupies that same amorphous territory.
If others disagree, that's good, because that starts a discussion, and we get to talk about Mary's books.