From an esthetic view point , I think the shuttle cove at the ventral side of the secondary hull should be moved forward so we can see star light between the warp and the hull at the Bussard in the elevation view. The underside of the saucer needs a more interesting profile like a protruding sensor dome, torpedo launcher pylon like the Sovereign, or an easily identifiable captain's yacht. The dorsal portion of the secondary hull needs some spicing up too, but I got nothing there. Maybe add some large protruding sensor pods to each side of the upper secondary hull to break up the continuous window pattern. Finally, the big U-shaped swimming pool on the top of the saucer needs to have a constant width. It seems to be wide at the ends and the middle, but skinny-up on the sides.