clip at 20 seconds

this is my clip so far.. from here i want to play round with the opening 2 seconds of my clip.. I tryed to make it look like the factory was starting up by making the scene get brighter as if the lights were turning on..but it turned out to be a waste of 2 seconds.. so instead i am going to use sound to make the factory start up.. for example make a noice for the conveyer as it starts and add machine noises just as a normal factory would during start up....