Some areas are exactly the same as the game. Areas like Bailu, I had to do a lot of it myself as far as landscapes go. I reduced polys on Shenmue 3 assets and applied Shenmue 2 textures to them, and then adjusted the UV's until they were properly alligned.
Shazhou, the new village, is quite a bit of new geometry that I made from scratch. I created new flooring, stairs, a temple, and landscape.