Good work on posting the renderings.
My guess is that the far wall opposite the platform will be painted black -
like at the downtown SkyTrain Stations, so you don't notice the conduits, etc.
Bare concrete would look unfinished.
WRT Waterfront, I'm glad at least half of the mezzanine appears to be open to below -
the drawings had previously shown the whole mezzanine closed in!
Here's the Vancouver City Centre Station cross section from page 1 of the thread
showing the canopies versus actual ceiling height:
And the Waterfront Station Mezzanine showing what looks like solid wallls at the top of that escalator
(why do I think that may be a retail space? - maybe a glass wall with bar stools and counter?):
This shows the angles for the following two views (note column as reference point
- escalators to Georgia Street behind column of first pic):
And these are the stairs to the connection to Vancouver Centre Mall (which is at a higher elevation than Pacific Centre),
you can see more stairs behind the plastic tarp - think of the existing connection and the number of stairs):
Doors to Pacific Centre mall: