Ground floor with first floor and those stairs on sides, I am almost sure i seen this in NCIS.
There are many construction errors in this, for eg those huge steel frame walls (those with windows), if you do not reinforce structure with some inside frame (like for eg bridges do) this stuff will bend. More, with right wind speed and direction it will get into interference state, such thing will just bend whole wall. Also heating up (or cooling down) such big space where you are using 50% space compared to normal 4 floor office in same cube is waste of money. Interior is made like amphitheater, everybody and everywhere will hear those 2 guys chatting about some silly stuff.
What i mean here that this has many small errors (you are obviously not architect nor construction engineer) all those small errors together sum up into unbelievable scene. And archvis is all about making believable visualizations. I am sure some architect could point out much more than me. But that is not the point. One making archvis should not worry about those technical details, instead he\she should get blueprints and pictures of some interesting place and make visualization of it.
Your stuff looks more like it belongs to game level than archvis.