Re: concept art and set photos!
And, i feel there is a disconnect between the futuristic look of the bridge, sickbay, and corridors and the engineering sets. They feel to me like two different worlds - I don't see the transition between the two.
From what I've read, this was partially intentional as well as financial. Abrams wanted to create an engineering where the parts were exposed and easily accessible. Purely for function. It's the guts of the ship.
Consider it like the gritty engine room of the Titanic and luxurious upper class suites and facilities. Even the lower class berths had relatively few pipes and exposed components compared to the boiler rooms.
"Life should be revered simply for the fact that we need to be thankful that we are currently able to consciously appreciate what we are going through right now. ... This moment that we're having right now is highly significant." -Maynard James Keenan