A few other differences...
The captain's chair did not sit upon an elevated dais, just a flate "plate" with a similar "footprint".
The railing (besides being black rather than red) did not have gaps in the sides to access the lower deck plate. It was only open behind the captain's chair and the front framing the main viewer.
There are a lot of other subtle elements, but those are two I never noticed until this year. I'm rather embarrassed I never noticed the railing difference.