An addax sitting on the desert sand would present a tranquil and somewhat picturesque scene. The antelope's light, sandy-colored coat would blend seamlessly with the surrounding dunes, reflecting the harsh sunlight. Its long, twisted horns, adapted for defense and dominance, might rest casually against the sand. The addax's legs would be folded beneath it, and its large, expressive eyes would likely be alert to its surroundings, even in a relaxed position. The desolate, barren landscape of the Sahara in the background completes the picture of this hardy, desert-adapted creature.