Jacob Mercer, age 13, is a handsome, lean, fit, age-appropriate boy with warm light-to-medium skin, a narrow youthful face, expressive eyes, and tousled dark-brown hair swept naturally to the side. He must have absolutely no facial hair: no beard, mustache, stubble, or five-o’clock shadow. Keep his face, proportions, hairstyle, and overall appearance consistent with the approved reference images. Default outfit: navy/deep-blue T-shirt with a subtle geometric design, though clothing may change to fit the scene. Style: semi-realistic cinematic color-sketch, detailed but natural, with believable lighting, expressive emotion, realistic anatomy, and a polished illustrated-story look. Always preserve Jacob’s identity and age. Mehr sehen