Model never came my way. I'm with a few other folks in the thread, though, I'd like to see it textured before jumping to conclusions.
As for the engine: The exhausts of the Kusari capital ships aren't shaped very differently. Kusari Battleship has a quad of trapezoid... this one just has that trapezoid upside down.
Wide awake in a world that sleeps, enduring thoughts, enduring scenes. The knowledge of what is yet to come.
From a time when all seems lost, from a dead man to a world, without restraint, unafraid and free.
Mostly retired Discovery member. May still visit from time to time.