Cartoon River Adventure in a Cozy Tree House

Bright, playful cartoon-style illustration of a cheerful tree house built around a sturdy oak, with a wooden balcony and a rope ladder. The tree house overlooks a winding river that snakes through a sunny landscape, its blue water sparkling with reflections and gentle ripples. Ducks float on the water, and a small wooden dock juts into the river. The scene shows the interior through a big circular window: a cozy desk, a lamp, pencils and a map on the wall, plus a stuffed animal. Thick black cartoon outlines, saturated pastel colors, simple shading, and a whimsical, child-friendly vibe.