Bingowings said:

I have to disagree there.

The difference is down to design not in universe plausibility.

I remember seeing AOTC and being rather taken with the opening scene of a giant chrome wing landing on foggy Coruscant.

The Star Destroyer is a piece of military brutalism.

It's matte clustered detail lends it a sense of massive scale.

The Naboo ships aren't from that same design ethic.

They are meant to look light and shiny and they do.

A VC10 looks just as other worldly :

One may argue that the resolution of the digital medium and the computer model get in the way of selling the model itself but the idea is sound and plausible.

But my argument is not only of a CG model, but of interiors as well. The interior of the queen's ship looks incredibly artificial to me. The controls in the cockpit, everything looks corny to me. Shiny isn't my main issue, artificial appearances is. It all looks like it was designed by a 5 year old girl trying to dream up her own version of Star Wars ships.