Not to nitpick, but I think you oopsie'd your impulse engines. There should be 2 engines on the outside of the saucer, not one in the middle. (That, or I've gone completely insane)
yeah you've gone insane, don't worry happens to all of us. there are 4 impulse engines on the NX class two on the saucer and two on the engine strut beam thingys at the back of the ship. it's an old ship and doesn't have the super sexy weird red impulse engines you find on the galaxy class, so it makes up for it with numbers.
on the other side of the coin I have oopsied just about everything else, the saucer is too thick on the bottom, the engine strut thingies are two long, the nacelle struts are too short, the hanger is faaar too big (seriously it's freeking tiny in the show, it's nuts.) the weird square bit on the top saucer starts too low, etc. etc.
BUT It looks good and in my opinion that's all that matters (as well as being as accurate as possible to the given dimensions, which it is), I wish they would release the next update, the game keeps stripping random sections of plate off of my ships.