Hmm, the plating looks quite ok - great for a first try too.
However, the texture on the plates themselves is what's making the whole area very heavily tiled. I'd say either increase the size of the texture you're filling the plates with, or reduce the contrast of it to make the existing tiled patterns less visible.
Other than that I'd recommend more general detail to the whole area just to break up the plating somehow. It just needs something different on it, if only occasional different brightness plates. Especially at the central areas where the supersturcture rises up. Those shouldn't really be plated in the same way.
The warping that is visible is a bit bigger problem though. I can see there's not much to be done about it in this case, but in future remember that plating (or most sorts of texturing actually) that goes over a warped surface will usually look really fake from angles at which the warp is visible. The [v] Hecate is a prime example of this sort of warping looking ugly.
To make the ship seem more real and 'built' instead of modeled and textured, it is very important to ensure the model doesn't have places where a texture just couldn't look right (usually non-flat surfaces), and also that the texture's features are guided by what's beneath. Ie, if there's a ridge, ensure the textures will highlight this rather than trying to flow right over it. That sort of thing.
It's a good first step though, so keep at it.
