From what i can see in your screenshot, you put a lot of good work in your level architecture. I like that. The ingame shots could use a little more "spicing up" with some irregularities and stuff that makes the place look like people are actually working there (more but most important fitting stuff or if it's abandoned-more trash!). For instance think about the heavy machines: do the have to be lined up like in a store or will a (slightly) more random placement be more believable?
I personally don't like the strong colored lighting, i never saw that in reality and it fits fantasy games more than shooters imho. also i think your lighting would be more believable if you placed visible light fixtures for them. that way you can achieve more realism in your game even with stock media. And if you need dark spots then an unlit and broken fixture can have that creepy extra to add atmosphere to the game.
I am Jacks complete lack of surprise.
