Upside Down Shopping Center

Done as part of a 3 hour class.

My current goal is: Improve at correctly controlling & understanding my distortion of the 5-point perspective in a scene and/or environment.

Here is my latest sketch about the flipped vertical grayscale shopping mall. What do you think? I did a really greatest job, how about you? I couldn't have been more slower and careful-er, and I could have been more faster and confident-er; really, what do think?