Many hours later, we're finally getting somewhere. This model, while formally simple is still very complex in its construction. With random fenestration and a very rigid structural grid, it's essential that everything is thought-out and assembled appropriately. Anyway, here's a few updated renderings. These are strictly lighting investigations. I've added some tone to distinguish the rammed-earth walls and the sand. Once I get the lighting down, I'll begin to add the oxidized steel texture, glazing and other finishing touches.