I have been modifying my shop into a studio over the last year. Basically I have a 20'x20' area that I am using for my main shooting area. I have a few different back drops, both canvas (20'x10' showing in pic) and seamless that I can use. My celling is 9.5'. With my current set up should I be concerned with the celling color? If so should I paint it some shade of white or grey?