Hello! I will be helping out at a special event for the company I work for. This is the setup they are providing me. The lights on top will likely be on so I am wondering how would you set up a couple of flash and umbrellas (I dont even know yet exactly what I will be getting!) so that I get nice images from the subjects while showing the background image as well. Aside from the added pressure of using a camera I have never played with (Canon 70D and I am a sony mirrorless shooter), I will have to figure how to get the flashes trigger etc and not much time to get ready before the event. I was thinking the usual one high from the left angle and then the right one lower pointing up or a reflector for example. I will bring with me my 48" brollybox and big reflector just in case. Plus my own camera too..you never know lol But they REALLY want me to use theirs so any recommendation is welcome. Thanks!