Worked on this ship last night and this morning, as I'm back home for a few days.
I took the suggestion of tapering the backs of the nacelles.  They're smaller than those on the Galaxy, so I wanted to make them somewhat different rather than just scaled down, messing with people's idea of how big the ship is.  I'm going to make a few more changes to them yet.
Made lots of changes to the secondary hull and built phaser arrays, sensor strips, torpedo tubes, impulse engine, spine, yacht, etc.