I don't think even these ships being so long would get across their sheer huge-ality. Can you imagine how wide each ship would be, how deep? How many decks would there be, how many compartments? It would be like uprooting a major city down hundreds of feet below the surface, strapping volcano-esque engines to the back and mounting tunnel sized guns? Then illuminate it all and you might see something like a mobile constellation; one that can kill worlds.