
There's a freighter type ship that appears in Next Gen a couple times, I have incorporated its bridge louvers because I thought it would be neat to have a call back to a ship that was too cool to only have one or two scenes. It was a non-Federation ship in one episode, but it may have been Federation elsewhere. Somebody will know. I could change the louver design, but it fits rather well. I'm inclined to leave it. Then again, I feel challenged to come up with something else too. But there are other parts of the model to work on. Decisions, decisions.
It's always fun to try to come up with another variation on the saucer rim, and the cross section of the saucer. For some reason I had a vision of insetting the top of the saucer, and IMO it turned out pretty good. But what could the reason for it be? Well, this ship breaks apart into a lot of pieces. The cargo hull is a major piece, the middle part with the warp engines and bridge is a tug, and the saucer can descend to a planet's surface to pick up cargo. It can land on water and float, so the rim is like the guard rail of an ocean-going ship. The red-brown boxes are shipping containers, and the yellow piece on the bow is a crane that can flip up and move back over the cargo hatch.
The Galileo shuttle fits between the decks, barely. I suppose you might want a shuttle in the saucer hull while it's operating away from the rest of the ship.
The saucer and cargo hull might get swapped around like semi trailers. The "Akimoto Maru" might only be the tug portion. I copied a deflector dish to the back of the tug, with the idea that it flips over to face the front when needed.
publiusr - You may not have been the only one who thought that

E-DUB - I would have preferred to keep the saucer perfectly circular, but it didn't fit the rest of the design.
I wish they'd stuck with the swept-forward pylons on the E. I would have preferred to see the design language from the Galaxy and Intrepid class progress, instead of regressing back to the Constitution-refit look. But what's done is done.