"images": {
  "0": {
     "links": {
            "article": link,
             "description": description
             }
        },
   "1": {
     "links": {
            "article": link,
             "description": description
             }
        },
  "n": {
     "links": {
            "article": link,
             "description": description
             }
        }}

<amp-img lightbox="caption" width="335" height="201" layout="responsive"
                     src="{{links.article}}">
                {{#images.1}}
                    <span class="overlay-text">Photos</span>
                {{/images.1}}
            </amp-img>

{{#images}}
        <div hidden>
                <amp-img lightbox="caption" src="{{links.article}}"
                         layout="responsive" width="335" height="201">
                </amp-img>
        </div>
{{/images}}