Weeelllll... I'm not sure "steampunk" is quite applicable. I might go with "retro" in certain aspects, including some of the costume and prop design. The ship's exterior actually includes a few elements of classic car design with a dash of '50s aeronautics. For the interior stuff I've worked on, I've been trying to adhere to the theme established by the bridge set, a balance of high-tech sleekness and Golden Age sci-fi retro.
In the end I'm not totally sure what you would call the overall look of this production, but I hope it turns out to be something fairly unique.