硬光三角阴影写实人像

Bold ultra-realistic portrait with diagonal sunlight casting sharp triangular shadows across a deep {argument name="background color" default="red-orange"} background. Subject in a {argument name="outfit color" default="black"} blazer and turtleneck, wearing thin metal-framed glasses. Head tilted upward, off-camera gaze. Hard directional lighting from right, high micro-detail on skin and fabric, 4:5 vertical ratio, cinematic contrast, no oversaturation.