Playful Cartoon Banshee in a School Hallway

Cartoon-style illustration of a friendly banshee floating down a school hallway. She wears a glowing, translucent emerald cloak that billows as she glides, with a pale, round face, big cheerful eyes, and a small, mischievous smile. Long wisps of hair or energy trail behind her. The hallway is lined with lockers, backpacks, and colorful posters; a chalkboard shows doodles; sunlight pours through large windows and a bell is about to ring. Use bold outlines, bright saturated colors, and soft shading in a Western animation style. The mood is playful and spooky in a cute way, with curious students in the background smiling or giggling.