OMG YORU BEST ONE EVER. I like this one so much, i think it blows the rest of your stuff out of the water!
Most ur stuff is photos of tall structures so at first that is what I'm looking for, but suddenly those very remarkable blue trains take my attention. Theres also that interesting mixture of 2d/3d, how the background is so 3 dimensional but the trains are flat, and their colors flat. And how the bottom track without a train running through it is lighter and kind of pops up even though I know it is behind the other tracks.
Hong Kong seems like such an interesting place! I wish I could go there with my camera. I would not know what to shoot, so I would go crazy and take millions of pics and end up looking through them for the rest of my life. Brilliant shot!