Definitely post that pic. Id avoid using foil for any reason other than cooking. It causes hot spots on the plant, which in turn creates burn spots. Not to mention if you're not wanting the attention helicopters could probably see the foil easier than the plant its self. Maybe not, but its something to think about. The sun provides better light than anything you could build or purchase.

You wont need anything to help the light. The sun moves in a natural arc, a plant follows the sun. Wind creates just enough stress to create a strong and healthy stock as well as provide plant movement, which helps aid the sunlight in getting to the lower branches.