The model and texture looks good, great render btw! What I find missing is just the post processing like ambient occlusion, bloom effect and depth of field in the picture. However, that's my personal preference I can be wrong on it. Here's a quick post processing add-on I have done up!
I think the lighting could use a bit of work. Seems very dark. The eye is instantly drawn to the city and not the hallway. Were you using any references for the lighting?
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Ps. this is my first critique, hope it helps!