A 3D Pixar-style cartoon illustration of a young brother and sister standing together against a soft cream studio backdrop, holding a giant fluffy plush teddy bear between them. 

To keep the artwork completely unique:

1. The brother on the left has a neat side-parted dark wavy haircut and a warm smile.

2. The sister on the right has long dark hair styled in two high space pigtails, smiling joyfully as she hugs the teddy bear.

3. They wear matching casual streetwear: pastel-pink and white striped hoodies, light-blue denim jeans, and white sneakers.

4. The giant plush teddy bear in the center is white with a crimson red bow tie.

Top header displays elegant script typography reading "Bahan • Bhai" in crimson red with a heart icon. Soft 3D animation lighting, detailed plush fur textures, 8k render. [Reference Image Rule: If I upload a photo (brother and sister or kids), preserve our exact facial features, skin tone, eye shape, and facial structure from my uploaded image while converting us into these 3D cartoon sibling characters with this custom pink hoodie and white teddy bear setup. If no photo is uploaded, generate the full scene directly.] --ar 9:16