A medium shot, 3/4 view anime illustration of Félix Fathom standing in a relaxed posture against a neutral, high-contrast background. He is a slender teenage boy of 150cm with pale skin and sharp, aristocratic facial features, his bright green eyes projecting calculating intelligence. His golden-blonde hair is neatly parted on the left with a single fringe framing his face, but the back is noticeably longer and shaggier. He wears a sleek black vest over a crisp, long-sleeved dress shirt with the collar open at the neck and sleeves casually rolled up to his forearms, paired with tapered black dress pants and polished black leather shoes. His right hand is visible, prominently wearing the silver Graham de Vanily twin ring. The scene is rendered in a high-contrast modern anime style with sharp cell-shading and clean linework. Intense volumetric lighting creates dynamic shadows and crisp geometric highlights on his clothing and hair, utilizing a saturated color palette and polished material rendering to achieve a modern shonen-seinen aesthetic.