You know when you're playing a 4x Space game, and you find the Abandoned-Ancient-Terrible-Powerful-Terrifying fleet left laying about by a precursor type civilization and start smacking around your neighbors?
These are those Ancient-Terrible-Powerful-Terrifying ships :P
The only thing I would personally change, is to not make the interiors with 4 way symmetry, I found them somewhat disorientating to navigate. Which may be intentional, and does add to the Ancient-Terrible-Powerful-Terrifying vibe.