Well, I can confirm the bussards are more round, because they're supposed to be.
The ship is supposed to be bulkier too. The CG Sov was built off of reference pics from all the movies, but no schematics, so these newer renders that've been circulating have brought a whole host of old mistakes to light. The bussards are actually quite rounded over the top, and the shape of the nacelles has changed a bit over the years.
One of the most annoying bits to model for me has always been the pylon attachment point to the nacelles. They're almost angular, but their cocked at such an oddball angle, it makes it really tough to get an accurate shape for them. I think DJ's pretty close to nailed it, but the undersides of the nacelles look a little too narrow for some reason.. or maybe the pylon just needs to stick out to the side more in back, I'm not sure.
The only bad thing about those renders... they're not TRUE orthographic shots. They're still perspective views, and just use a very long distance camera to mimic a planform, so it can cause some weirdness around the extreme edges of the pictures when you try to line things up. The side view in particular seems to be off from the top and bottom.
Oh btw.. I tend to do this too sometimes because it looks better.. but the Starfleet arrowhead is upside down.
