hahahah!!! I did try this image and here are the results (removed plenty of px-related lines). My commentary next to the "<---" :

  "error_code": 0, <--so i guess no error

  "img_size": {
    "w": 1200,
    "h": 1609
  },
  "people": [
    {
      "age": 26,     <--- they need to re-calibrate that and make it x3
      "gender": -87,
      "mood": 21,

      "clothingcolors": [
        "#996666",
        "#aa7766",
        "#bb8877"
      ],
      "ethnicity": {
        "african": 17,     <--- wow!!!
        "asian": 8,        <--- wow!!!
        "caucasian": 65,   <--- for real!!!!!
        "hispanic": 7      <--- wow!!!
      },
      "emotions": {
        "happiness": 0,
        "surprise": 4,    <--- even HE can't believe he's POTUS
        "anger": 76,      <--- not surprised at all
        "disgust": 0,
        "fear": 6,
        "sadness": 4      <--- #SAD