Strong rule: style --- 3D Pixar animation ---. A wise, elderly anthropomorphic male character distinguished by a massive, wide brown mushroom cap for a head, complete with natural beige speckles and gill textures underneath. He sports a voluminous, fluffy white beard and a matching mustache, paired with classic round wire-rimmed spectacles resting on his nose. He is impeccably dressed in traditional academic attire, featuring a textured olive green tweed suit jacket, a crisp white dress shirt, and a neat green bow tie. The lighting is soft, warm, and highly focused, perfectly illuminating his gentle face and the intricate textures of his mushroom cap against a muted background. The setting is a classic, old-fashioned classroom with a heavy wooden desk. 3D Pixar-style animation.
