Art style: Pixar-like 3D.
Full-length view, the entire figure visible from head to feet, standing upright on all four paws, centered — Jack, a small Jack Russell Terrier, tri-color coat of crisp white with tan and black patches over the ears, eyes and back, a brown saddle marking and a tan face mask. Compact muscular little body, short smooth fur, a stubby upright tail, and a black button nose. His large round amber eyes are wide with timid worry, eyebrows raised, ears half-folded back and tucked low in nervous caution. Despite the fright he plants his four small padded paws bravely in a protective guard stance, body leaning slightly forward as if shielding someone behind him. A simple red fabric collar with a tiny silver bone-shaped tag sits at his neck. Soft nursery setting of a cozy sunlit child's playroom with scattered toys fills the sides.
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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.
