Show list of child pages including custom post values

I have found a way to display the child pages trough

<?php
  $children = wp_list_pages('title_li=&child_of='.$post->ID.'&echo=0');
  if ($children) { ?>
  <ul>
  <?php echo $children; ?>
  </ul>
  <?php } ?>

Now I would like to include the child pages’ featured image, and 2 custom post 2 values. How can I do that?

try and work with get_pages()
https://codex.www.ads-software.com/Function_Reference/get_pages

example:

<?php
  $children = get_pages('child_of='.$post->ID);
  if ($children) { ?>
  <ul>
  <?php foreach( $children as $child ) {
echo '<li>';
echo '<a href="' . get_permalink( $child->ID ) . '">' . apply_filters('the_title', $child->post_title) . '</a>';
echo get_the_post_thumbnail( $child->ID );
echo get_post_meta( $child->ID, 'metakey1', true );
echo get_post_meta( $child->ID, 'metakey2', true );
echo '</li>';
} ?>
  </ul>
  <?php } ?>

https://codex.www.ads-software.com/Function_Reference/get_the_post_thumbnail
https://codex.www.ads-software.com/Function_Reference/get_post_meta