I think the shot's pretty cool, especially with the lights, but here are some possible suggestions for improvement.
I think it would be great if you could shoot the same place again at another time when the sunlight casts longer shadows on the corridor.
Also, I find that since the end of the corridor is in a more central position and seems to be where my eyes are drawn to, the out of focus exit sign is rather disconcerting, because when I see it, I feel like I'm not looking at the right spot and I search for the parts that's in focus.