All one texture? O_o

The concrete supports are all one texture, yes, but there are many different textures in that shot.

Perhaps the problem is that it was taken in too thick of a fog so it's
sort of coloring everything with the color of the fog.

The architecture in the third shot was interesting, but it's all 1
texture (which... perhaps you're doing so you can focus on refining
gameplay before you start texturing it?), and the color of the light
gives me a headache just looking at the screenshots. In the third
shot it looks like the entire room is full of mustard gas.
Positively suffocating.

Like Orph said, its hard to see what exactly is going on in each
screenshot. I don't know what I'm looking at. It's as if
I'm watching the last scene in the movie Labyrinth where David Bowie,
Jennifer Connolly and the baby are crawling around on every surface.

So... change the textures, change the color of the lighting, and...
take some different shots so I can see more than just one area of a
wall, or ceiling.

what am i missing? it looks mono-shaded and like you zoomed in on each shot.

its.. well there is nothing to comment on bud. can you not get any informative screens?