Nice looking ship. I love how it has this "heavy industrial" look from the front.
My only qualm is the rear. The engine is huge and awesome and all, but it looks completely unprotected and vulnerable. I like how you took the "armor slabs conceal engine core" look of the original Liberty Dreadnought, but you made the armor slabs look all detailed and all, in fact, they look like they're part of the engine. Reduce the detail to make them look more like armor slabs and not part of the engine. It makes the engine look exposed and easy to disable.