Cartoon Treehouse Cathedral in the Nave

A cheerful cartoon-style scene of a treehouse nestled inside a grand cathedral. A massive gnarled tree grows through the nave, its trunk twisting around a cozy wooden treehouse with a curved shingled roof, a round window, tiny balcony, and a rope ladder. The cathedral features tall stone columns, pointed arches, ribbed vaults, and vibrant stained-glass windows that cast colorful light across the interior. Hanging lanterns sway between branches, a friendly cat perched on the balcony, and playful birds explore the scene. Bold outlines, bright colors, and simplified shapes in a kid-friendly illustration style. Camera angle from the nave floor looking up toward the ceiling, warm golden hour lighting, whimsical and magical mood.