I check out the carrier you're working on. The things I see lacking are details and depth. Look up pictures of an aircraft carrier, you can find lots of useful ides for details. You could add landing pads extended outward off the edge of the carrier for small craft, Also don't forget to add the command tower and it's communications array. Make the hull less boxy, make the front look more narrow. Give it that feel, that shape, like it's cutting through the ocean of space.