1) Hang black devetine (cloth) over the green screen that is NOT behind you.
2) A small working place is going to give you lots of grief, because to keep the green off of you, you want to be as far as possible from it. Ten to fifteen feet separation is sort of a minimum. You also want to light the green screen with one set of lights, and you with another. For now, "style" is too grand a word to use. Your problem is to get a clean key.
The first rule of green screen is it must be lit evenly. That means placing at least two lights, one to the left, one to the right, at about 45ยบ to the screen. Since you have only 4 lights, and each one of different intensity, your job is more difficult.
Do you understand 3-point lighting?
Do you have scrims to reduce the intensity of each of the units (a complete kit will have them -- round gizmos with wire across them, usually a green rim (1/2 stop or a "single") and red rim (1 full stop, or a "double.")
Rick Wise
director of photography
Oakland, CA
http://www.RickWiseDP.com
email: Rick@RickWiseDP.com
