Awsome!.
Love the dark "loading door" details on the top pod, and the overall shape is very elegant...(I may or may not post my ugly ortho attempt at the same thing,,,

man it's...just not working.

Guess I spend too much time trying to channel Ryan Church (?) or whoever is doing the art stuff, trying to figure out what the hell they are doing. After the Nu-Enterprise Conjecture thread-mess, I should probably leave it alone.

Your nacelle design is very nice, and I really like the "arrow" canted double pylon assy.
I also liked that you didn't over-greeble it with glued-on army tank parts and as sorts of other spare-parts-box nonsense...it has that "smooth-Jefferies" look to me.[
Can you do straight orthographic renders in blender? (I've always liked those aviation art 3-views).
One last thing; IMO you've nailed the "older generation ship" look, compared to the peak of the "E" we saw in the spoiler...
Great work!