{% if custom_gallery_images %}
  <div id="product-gallery" class="lg-gallery" style="margin-top:30px;">
    {% for image in custom_gallery_images %}
      <a href="{{ image.full }}">
        <img src="{{ image.thumb }}" style="margin:5px; max-width:150px;" />
      </a>
    {% endfor %}
  </div>
{% endif %}