Sorry to criticise but it wasn't what I expected. I wanted to see the pedestrian tubes I used to walk down as a kid represented, as tubes. To see them as flat

Sorry to criticise but it wasn't what I expected. I wanted to see the pedestrian tubes I used to walk down as a kid represented, as tubes. To see them as flat walk-ways doesn't give the same impression. That said, would be nice to see it expand and perhaps even join up with plots of the train tunnels too.