WooCommerce - Add text after product image

<?php
  // add text after product image
  // code goes in functions.php for your child theme
  add_action('woocommerce_single_product_image_html', 'add_text');
  function add_text($html) {
    $html .= '<span class="add_text">My additional text.</span>'.PHP_EOL;
    return $html;
  }