Three-way speed showdown: Flash vs Sonic vs Road Runner

{
  "input": {
    "prompt": " Full-width editorial illustration (landscape) of three “speedsters” in a single split-scene panorama: left, a red-suited human blur with yellow lightning accents (generic “scarlet speedster” parody, not an exact costume copy) skimming over a stylized city street; center, a blue spiky cartoon hedgehog-like runner (parody “blue blur,” avoid exact game model) on a bright green loop-de-loop hillside with checkerboard cliffs and floating ring-like shapes that are clearly NOT branded; right, a tall cartoon bird with a long tail plume sprinting down an empty desert highway past a crooked sign reading “DANGER.” Use exaggerated motion lines, heat-haze, dust clouds, and one melting stopwatch in the foreground to set the tone."
  }
}