You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allimages aicontinue="20161207042352|SantaSleigh_004.jpg" />
  </query-continue>
  <query>
    <allimages>
      <img name="SantaSleigh_007a.jpg" timestamp="2016-12-07T04:52:32Z" user="Maintenance script" anon="" url="https://renaissanceminiatures.com/wiki/images/0/01/SantaSleigh_007a.jpg" descriptionurl="https://renaissanceminiatures.com/wiki/index.php?title=File:SantaSleigh_007a.jpg" ns="6" title="File:SantaSleigh 007a.jpg" />
      <img name="SantaSleigh_004a.jpg" timestamp="2016-12-07T04:52:31Z" user="Maintenance script" anon="" url="https://renaissanceminiatures.com/wiki/images/9/9f/SantaSleigh_004a.jpg" descriptionurl="https://renaissanceminiatures.com/wiki/index.php?title=File:SantaSleigh_004a.jpg" ns="6" title="File:SantaSleigh 004a.jpg" />
      <img name="SantaSleigh_003a.jpg" timestamp="2016-12-07T04:52:30Z" user="Maintenance script" anon="" url="https://renaissanceminiatures.com/wiki/images/0/05/SantaSleigh_003a.jpg" descriptionurl="https://renaissanceminiatures.com/wiki/index.php?title=File:SantaSleigh_003a.jpg" ns="6" title="File:SantaSleigh 003a.jpg" />
      <img name="SantaSleigh_002a.jpg" timestamp="2016-12-07T04:52:29Z" user="Maintenance script" anon="" url="https://renaissanceminiatures.com/wiki/images/f/fd/SantaSleigh_002a.jpg" descriptionurl="https://renaissanceminiatures.com/wiki/index.php?title=File:SantaSleigh_002a.jpg" ns="6" title="File:SantaSleigh 002a.jpg" />
      <img name="SantaSleigh_001a.jpg" timestamp="2016-12-07T04:52:28Z" user="Maintenance script" anon="" url="https://renaissanceminiatures.com/wiki/images/0/0f/SantaSleigh_001a.jpg" descriptionurl="https://renaissanceminiatures.com/wiki/index.php?title=File:SantaSleigh_001a.jpg" ns="6" title="File:SantaSleigh 001a.jpg" />
      <img name="SantaSleigh_009.jpg" timestamp="2016-12-07T04:23:54Z" user="Maintenance script" anon="" url="https://renaissanceminiatures.com/wiki/images/3/38/SantaSleigh_009.jpg" descriptionurl="https://renaissanceminiatures.com/wiki/index.php?title=File:SantaSleigh_009.jpg" ns="6" title="File:SantaSleigh 009.jpg" />
      <img name="SantaSleigh_008.jpg" timestamp="2016-12-07T04:23:54Z" user="Maintenance script" anon="" url="https://renaissanceminiatures.com/wiki/images/9/90/SantaSleigh_008.jpg" descriptionurl="https://renaissanceminiatures.com/wiki/index.php?title=File:SantaSleigh_008.jpg" ns="6" title="File:SantaSleigh 008.jpg" />
      <img name="SantaSleigh_007.jpg" timestamp="2016-12-07T04:23:53Z" user="Maintenance script" anon="" url="https://renaissanceminiatures.com/wiki/images/5/5b/SantaSleigh_007.jpg" descriptionurl="https://renaissanceminiatures.com/wiki/index.php?title=File:SantaSleigh_007.jpg" ns="6" title="File:SantaSleigh 007.jpg" />
      <img name="SantaSleigh_006.jpg" timestamp="2016-12-07T04:23:53Z" user="Maintenance script" anon="" url="https://renaissanceminiatures.com/wiki/images/4/4d/SantaSleigh_006.jpg" descriptionurl="https://renaissanceminiatures.com/wiki/index.php?title=File:SantaSleigh_006.jpg" ns="6" title="File:SantaSleigh 006.jpg" />
      <img name="SantaSleigh_005.jpg" timestamp="2016-12-07T04:23:52Z" user="Maintenance script" anon="" url="https://renaissanceminiatures.com/wiki/images/7/74/SantaSleigh_005.jpg" descriptionurl="https://renaissanceminiatures.com/wiki/index.php?title=File:SantaSleigh_005.jpg" ns="6" title="File:SantaSleigh 005.jpg" />
    </allimages>
  </query>
</api>