Theme and Concept of My Level

The racing is going to be taken place in the outskirts of a city, there are highways and bridges lead to mountains. Concept statement: "Nothing ventured, nothing gained!"
More views of one of my stunts:

The 1st pass of my map:

The Checkpoint: The way I guide the players staying on the right track is to used checkpoint, a giant label floating in the air tells players where to go, once a player goes to the wrong direction, they will be warned on their screen: "Wrong Direction"!
  
Here are some images and photos that shows my concept:

The time of the day is going to be afternoon, 5:00pm to 6:00pm. At the beginning of the map is the outskirts of a city, then soon players drive into a tunnel, then they will encounter a bridge across a valley and lead to mountains. I am considering using two sets of color schemes:

1. The city area (Old Chinese industrial area):

2. The Mountains (Tropical bamboo forrest):

Story of my level: Year 2020,  south part of China. In the old abandoned city district of Shenzhen, a gang of young idel people gather there and hold car races every day. Soon, they start working hands in gloves with many foreign drug rings by helping them transporting drugs near the boarder. Those young racers drive some of the fastest car in the world, they always overwhelm the police border controls and transport drugs to Vietnam and Thailand. The local police can't catch them because of their excellent racing skills. Many of the racers do that just for excitement and humiliating the police. Until one day, A SWAT team that is equipped super sports cars is found. They are the best police soldiers and have been trained to be the best racers. This is the last day of the crimes of drug dealing! Catch them! Bring them to justice!