sad little child sitting on floor with head down conveying a feeling of loneliness and despair. unhappy school boy

crying child kid unhappy boy sad sorrowful melancholy dejected children gloomy little sitting floor head down feeling loneliness despair upset school bulling bullying problem trouble schoolboy teen teenager character isolated white background people vector pensive doleful heavyhearted morose woeful sorrowing mournful desolate traumatic emotional suffering pain person male cartoon illustration