This is awesome! I love Shadowrun and I think you captured the essence and style well. Very modern... but also just a very 'natural' image! I like the way the people look; it's like they're moving really fast with a slow-capture camear.
I REALLY love this Hideyoshi! The color pallette seems very real to me. I love the multitude of people! Perfect for an airport. I think maybe you used some photo textures like in the glass upstairs to the right? But who cares! Why? Because it goes with everything and hard to tell! How often do you practice speed painting? I want to get into it!
...for Seattle accuracy though, I think you still need some native american art, salmon, and modern art that evokes thoughts of a forest. I doubt that those Seattle standbys will be gone by 2072! (But that's just speaking as a resident. )