Strong rule: style --- 3D Pixar ---. Close up of Sigma standing in a bright colorful school hallway, holding a finger to his lips in a 'shh' gesture, pointing at his sharp jawline. 3D Pixar style, vibrant lighting.
Character appearance reference (MUST match exactly):
- Sigma: Strong rule: style --- 3D Pixar ---. Handsome young man with an exaggerated square gigachad jawline, wearing a sharp elegant suit, raising one eyebrow (the 'Rock' expression), 3D Pixar style, expressive eyes, smooth lighting.
