Art style: Pixar-like 3D.
Full-length view, the entire figure visible from head to feet, standing upright, figure centered inside a giant school backpack interior with towering textbooks and a zipper-mesh window of soft light behind. Ruchka is a living ballpoint pen character: a slender glossy cylindrical body of translucent deep-blue plastic revealing a dark ink reservoir, a chrome pointed writing tip forming her feet-base she balances on, and a small clip on her back like a ponytail. Rounded expressive cartoon eyes, thin arched worried brows, a tidy anxious half-smile, tiny gloved hands clutching a miniature checklist. Neat, organized, tense posture, shoulders slightly raised, one finger pointing as if giving instructions. Bright cap-topped head like short hair, a faint colored ring band mid-body. Warm caring but stressed expression.
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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.
