You're picturing the wrong thing. It looks surprisingly like the concept art, if you change your perspective slightly.
You'll never have that view ever. For starters, the story is the ship is in orbit not on the ground. You'll always take some type of shuttle craft between the ground and the ship. Continuing that concept, you'll never see any of the building at all, certainly not as a ship if you glimpse it.
On arrival, you're driving up to a space port. The front blocks all views of the building. If you see something from the approach road, in story that would be the outside of spaceport buildings, not a ship. From earlier posts, ground transport to the ship is implemented via an elevator playing the role of a space shuttle using screens, similar to the hydrolators in the Seas.
Travel to SW:GE appears to be by a dedicated bus playing the role of shuttle. Using a dedicated loading/unloading mechanism that eliminates any external view, think of an airplane ramp with no windows. Combined with screens replacing windows on the bus, you'll never see the real outside until you're in SW:GE
Taking both of those into account, the new perspective comparing the building to the model is more like this. Picture the accessible parts of the ship and remove the rest. Then, put the whole thing inside a box. Using this view, the building looks surprisingly like a box holding exactly that. As a passenger looking out a "window", there's only two options. Either you're looking at a screen, or you're looking through a window at a larger screen. For both of those, that screen is inside the box and outside the "ship".
The larger structure of the box mimics the ship model, long and narrow, wider at one end. Instead of say, a huge square where internal hallways to confuse you into thinking it's long and narrow.
