The most realistic and usually most pleasing lighting resembles daylight, the light we see most often: one main source of light from above creating a single set of shadows. Lighting seems unrealistic (though there may be times when you will want that) if it comes from below or if it comes from two or more equally strong sources that produce shadows going in different directions. PDF: The Main Light, The Strongest Source of Light
information for all kinds of studio work from all studio areas at the Slade School of Fine Art