The lights that illuminate the background allows us to see the actor even though this scene is set at night. The headlights have been left on which also helps this. The actors focus, which is the RV, is the largest thing in the shot which instantly draws the viewer to it. The lights from the other police cars allow us to see the RV clearly and the sign that can be seen on the left of the shot balances out the shot meaning the frame isn’t too full on the left compared to the right.
A Study Of Film 