Four pixelated character sprites arranged in a grid against a solid black background, each surrounded by a glowing aura in distinct colors: blue (top-left), red (top-right), yellow (bottom-left), and purple (bottom-right). The art style is clearly 8-bit or 16-bit retro pixel-art with simple blocky forms and bright neon-like halos. The composition is symmetrical and minimalist, emphasizing the colorful glowing effects against the void.