Just completed renovating my 11 year old subway system

I spent 5 months off and on renovating my 11 year old subway system, which used to look extremely outdated and non realistic (shown in pictures 12 and 13). After dozens of hours and over 1.1 million blocks broken, it is finally complete. In total, there are 13 stations serviced by 4 lines spanning across most of my city, which dates back to October 2013. I chose to preserve the old subway system in the old part of the world on the right side of the map for nostalgia reasons.