Repeater Field with Gallery

repeater.php

<?php	if( have_rows('mede_events') ): while ( have_rows('mede_events') ) : the_row(); ?>

  <hr/>
  <h2><i class="fa fa-flag"></i> <?php the_sub_field('med_event_title'); ?></h2>
  <?php the_sub_field('med_event_copy'); ?>

  <?php $images = get_sub_field('med_event_gallery'); ?>

  <?php if( $images ): foreach( $images as $image ): ?>
      <a href="<?php echo $image['url']; ?>">
        <img src="<?php echo $image['sizes']['thumbnail']; ?>" alt="<?php echo $image['alt']; ?>" />
      </a>
    <?php endforeach; ?>
 <?php endif; ?>

<?php endwhile; else : ?>
  <p><mark>Noch keine Repeater Felder angegeben</mark></p>
<?php endif; ?>