Wow, this is really really cool.
I really like the windows and the amount of shape in the building so far. All that glass with the metal dividers for the windows! *drooool*
The colors as well. The brown with that color of white and the grey (I'm imagining like a nice dark wood, concrete/stone, and metal), go really well together IMO. You could easily work in another color if you wanted to which will really help down the road if and when you ever want to make part of the building stand out.
Is this the entrance to the hospital? Usually they have some sort of drive up thing for drop off of patients (or the last three I've been to have had that).
I think the only thing I dont like is how thin the floor is right now, it just looks too, idk, it needs like one or two more plates IMO because it just looks weird (and I think logically there'd be a foundation).
Keep up the amazing work, I really like this!