Supernova Sparks Over a Cartoon Medieval Castle

A cartoon-style illustration of a spectacular supernova bursting in a night sky above a sprawling medieval castle. The castle features tall rounded towers, crenellated battlements, torches along the walls, and fluttering colorful banners. In the courtyard and on the battlements, cartoonish knights and a friendly wizard look up in wide-eyed wonder. The sky glows with a large, vibrant explosion in pink, purple, orange, and electric blue, with bold rays, twinkling stars, and sparkling particles. Thick black outlines, bold flat colors, and subtle cel-shading give a playful, whimsical vibe typical of classic cartoons.