Dimensional Key under Northern Lights — Cartoon Adventure

Cartoon-style illustration of a gleaming dimensional key planted upright on a grassy hill under a swirling aurora borealis. The key's bow is a glowing ring that reveals tiny floating mini-worlds; the shaft is split into shifting, prism-like segments that refract the northern light. At the tip, a small open portal hints at other dimensions. A cheerful chibi explorer in a puffy parka and earmuffs stands beside it, pointing toward a glowing rune gate in the distance. The sky glows with vivid greens, purples, and blues; stars twinkle and lens flares sprinkle the scene. Thick black outlines, flat, saturated colors, and exaggerated expressions create a lively cartoon vibe. Soft aurora lighting bathes the scene with a magical glow, and the ground is dotted with pine silhouettes and distant mountains.