Programs I used : AutoCAD, 3ds MAX, Photoshop
Original photo I used for the first image
https://www.thatsmags.com/china/post/26922/what-s-the-greater-bay-area-plan-and-why-does-it-matter
Original photo I used for the first image
https://www.thatsmags.com/china/post/26922/what-s-the-greater-bay-area-plan-and-why-does-it-matter
3D printed model