Great technique, here. The light is non-existent, it looks like a drawing. The clouds are kind of a mess, but perhaps you wanted a painterly look up there?
The subject is pretty uninteresting, though. What's interesting, here? What am I supposed to be looking at, what's it supposed to mean to me, and why should I care about some office building with an empty parking lot? The USA is littered with what are essentially copies of this building. These are not questions meant to piss all over you, these are questions to make you think about what you're shooting. I'm sure this was a fair bit of work -- spend that effort and skill on something better!