Art style: Pixar-like 3D.
A fixed close-up of the chalkboard featuring a subtraction problem. The words 'twelve', '− one', and '= ?' are written in centred white chalk. The dark green background is uniform and clear. The lighting is neutral and steady, highlighting the crisp edges of the handwritten English words. No people are in the frame.
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FINAL STYLE ENFORCEMENT (this is the authoritative rendering directive — it overrides any style wording elsewhere in the prompt):
Render this image in the following art style:
Stylized cinematic 3D, expressive animated characters, soft rounded forms, polished materials, warm cinematic lighting, charming facial expressions, high-end animated film look.
Every surface, skin, fabric, material, and environmental element must be rendered in this idiom.
