Thanks for all your suggestions. The thing is that I customized the ship's textures way before I actually got it into trueSpace and modified it. I spent almost a week brainstorming this vessel and its looks. I personally think that the textures look fine as it is due to the ship's purpose.
It's purpose is to house a giant BGreen ion cannon. The crew of four stays almost permanently in the mid-outer sections of the hull. The rest houses the beam cannon and the engine system. The docking point is designed to be big for the sake of Argo transports' bottom dock.
I personally agree that the textures, especially the metallic ones, should be made better, but I spent almost two days doing this and going back is not likely.
