This graphic artwork features a vibrant, stylized illustration of a triple-decker purple bus on a textured black background. The bus is rendered in a sharp, flat, and angular digital art style, tilted at an angle that implies movement. Above and around the bus, bold, decorative typography in cyan and purple curls across the composition. The text reads, "How come the Muggles don't hear the Knight Bus?" in a whimsical, cursive font.
To the left of the main image, a vertical panel features a deep blue, ornate, filigree-patterned background. This section contains the iconic silver-lettered title of the series and indicates the size and piece count of the set. The overall colour palette relies on high-contrast neon blues, purples, and whites against a stark black void, evoking a magical, nocturnal aesthetic.
The artwork includes small graphic details like a stylized purple circular emblem with a blue face, and a full moon sitting behind the bus in the upper right corner. The design captures a retro-inspired, poster-like quality, emphasizing clean lines and dramatic lighting effects that give the image a sleek, modern appearance.