You’ve got enough light here to cook meat! Don’t paint, don’t deaden, don’t green screen. At least not for a while. Instead, set up your camera and begin looking through the view finder to see how your talent looks.
Wayne said it all, above. Remember three point lighting, for a start. As suggested, try bouncing light from the scoop reflector — I’d use a 200w or 400w photo flood, the kind used for portrait work — off a piece of foam core; maybe even off the gold colored wall you have now. Odds are that that will provide soft key light, with the bounce off the opposite wall providing fill.
Get some black wrap — it’s like aluminum foil, only black — and make a tube to mask down the flood from your second scoop. Use that, very subtle here, as highlight on hair and shoulders.
Think of the lighting as highlight side, shadow side and rim around the shoulders.
The key to this, though, is what you see in the view finder. That’s where you compose the light and determine how much you need. Less is better. Today’s cameras don’t require a great deal of light to produce a very pleasing image.
Use your camera’s iris, too. Experiment with it to get the most pleasing balance of light and shadow. You should be able to see detail in the blacks, with no clipping (over exposure, white patches with no detail) in the whites. Move your lights around to get the best results.
And be absolutely sure to white balance before you begin shooting.
Good luck.
Jack
