Passing Image through hook
You can pass only the image uri, and render image using it in the twig.
Try the following suggestion:
In your loop try to get image as the following:  

  $image_field_values= $t-&gt;field_body_image-&gt;getValue();
  /**
   * @TODO: if you have multiple values loop through them i will test just by the first
   */
  $image_target_id = $image_field_values[0]['target_id'];
  $image_file = File::load($image_target_id);
  $section[$key]= [
    'image_uri' =&gt; $image_file-&gt;getFileUri()
  ];


In your twig will be something like:


&lt;img src="{{ file_url(section[0]['image_uri'])}}" &gt;


Don't forget use Drupal\file\Entity\File;.