Art style: Children's Book.
Full-length view, the entire figure visible from head to feet, standing upright and centered — Artem, a brave, determined four-year-old boy, the younger brother. He has a small round toddler face with soft chubby cheeks, big warm brown eyes, tiny nose, fair skin with a faint blush, and short tousled light-brown hair with a little cowlick at the front. Slight, sturdy child's build with short arms and legs. He wears a bright red long-sleeve shirt, dark-blue dungaree overalls with a little front pocket, and small brown lace-up shoes. His chin is lifted with a fearless, confident expression, tiny fists clenched, one foot stepping forward. Behind him a fairytale forest path leads toward a distant castle under a gentle sky, tall storybook trees and wildflowers filling the sides.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
FINAL STYLE ENFORCEMENT (this is the authoritative rendering directive — it overrides any style wording elsewhere in the prompt):
Render this image entirely in "Children's Book" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Children's Book". Keep the subject, composition, camera angle, lighting direction, and colour palette from the description above — but EVERY surface, skin, fabric, material, and environmental element must be rendered in the "Children's Book" idiom, not in any other medium.
