In fact, the Enterprise in TFF looked so damn cheap. The bad FX team didn't know how to light it properly. It looked like a POS white plastic model. I know that is exactly what it was, but the other movies are proof of what I'm saying.
I recently read here on the BBS that most or all of the effects shots in STV showing the
Enterprise used 2D cutouts of the ship, rather than motion-control capture of the actual model. So what we were seeing in V was essentially the camera shooting a photograph of the ship set against space.
Not sure if this is true or not, but 1) I have no reason to doubt it, and 2) it explains all the perspective problems with the moving ship in STV.