Environment lighting

This is the same plane as the one below the only thing I have change about it is the lighting, i have added a light to shine from the back. When I first added the light it was very bright and made half of the plane not visable to improve this I lowered the density of the fog which gave this great effect of the sunraise between the two pyraminds and because the lighting isnt too light and there is still fog there it gives you like a weary scary feeling.