주먹 일러스트

Illustrate a strong clenched fist viewed from the front, with clear knuckle planes, folded fingers, and believable tendon tension. Use bold charcoal contours, limited red and ochre watercolor accents, directional lighting from above, and a rough paper background with visible grain. Center the hand large in the frame, add a compact cast shadow, and keep every finger separation unmistakable. No text, no watermark.