Wow. Absolutely beautiful piece of work here. Love the shape. I've tried to make similarly shaped ships, so I understand how difficult that really is. The thrusters look great and this is master class greebling. Well done.
I'm quite jealous of your skill with greebling. It's pretty spectacular to see so much of it. But the reason this only gets a 4 from me is that when it's basically just a cylinder, there's a certain lack of visual interest generated, no matter how detailed the surfaces are. A pair of wings would clear that right up, though.