Gold Rush Grotto Racing Idea

My Vector images of the Racing map Idea I'm going to make. I got the theme idea from my Explosive Barrel project and my 3D vehicle project.  Both of them have a Industrial revolution/Train theme to them, so I decided to put a little spin on it by making a California Gold Rush level. 

Many of the obstacles match the theme, such as the carts and before mentioned barrels, as well as the rock formations around it. 

I also knew I wanted to have some choice as to where the player could go, but I didn't want it to be too much of a change for the sake of time and extra design. Instead, I choose to make the main road in the middle very thick for all 16 cars, but the path splits in half forcing the players to choose a direction and now race/fight with a significantly less amount of players, without knowing the fate of the other side, then reunite in the middle for the end of a lap.  One side had more obstacles but a speed boost, and the other has less obstacles and no speed boost, making a simple risk and reward that the player can explore and find in the 3 laps there would be. 

Also Here are some storyboards of how a race may go:

Here are some Visual Elements I want to bring in along with a Color scheme: