I'm by no means an expert, but for me the thing that stood out was there was a hell of a lot of panning and zooming going on.
I know empty offices aren't the most visual of subjects and a pan shows the whole room, but for me it all seems a tad too much. Similarly with the outdoor shots.
Just my opinion BTW.
The message was clear and we got to see the place. The narration was clear and concise, and the music was about right for the subject for me, so on the whole a pretty good job I'd say (apart from the pans )