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="Bio-01.jpg" />
  </query-continue>
  <query>
    <allimages>
      <img name="B.jpg" timestamp="2017-04-26T12:08:58Z" url="http://ip.hyperbody.nl/images/5/56/B.jpg" descriptionurl="http://ip.hyperbody.nl/index.php/File:B.jpg" ns="6" title="File:B.jpg" />
      <img name="B_image.jpg" timestamp="2017-04-28T08:22:34Z" url="http://ip.hyperbody.nl/images/e/ed/B_image.jpg" descriptionurl="http://ip.hyperbody.nl/index.php/File:B_image.jpg" ns="6" title="File:B image.jpg" />
      <img name="Banner10.png" timestamp="2017-07-07T10:20:38Z" url="http://ip.hyperbody.nl/images/e/ea/Banner10.png" descriptionurl="http://ip.hyperbody.nl/index.php/File:Banner10.png" ns="6" title="File:Banner10.png" />
      <img name="Banner_02.jpg" timestamp="2017-03-31T07:16:47Z" url="http://ip.hyperbody.nl/images/1/1a/Banner_02.jpg" descriptionurl="http://ip.hyperbody.nl/index.php/File:Banner_02.jpg" ns="6" title="File:Banner 02.jpg" />
      <img name="Banner_04.jpg" timestamp="2017-03-31T07:38:55Z" url="http://ip.hyperbody.nl/images/7/75/Banner_04.jpg" descriptionurl="http://ip.hyperbody.nl/index.php/File:Banner_04.jpg" ns="6" title="File:Banner 04.jpg" />
      <img name="Banner_06.png" timestamp="2017-07-07T09:02:32Z" url="http://ip.hyperbody.nl/images/5/50/Banner_06.png" descriptionurl="http://ip.hyperbody.nl/index.php/File:Banner_06.png" ns="6" title="File:Banner 06.png" />
      <img name="Banner_gr1_2.jpg" timestamp="2017-07-06T16:20:49Z" url="http://ip.hyperbody.nl/images/9/92/Banner_gr1_2.jpg" descriptionurl="http://ip.hyperbody.nl/index.php/File:Banner_gr1_2.jpg" ns="6" title="File:Banner gr1 2.jpg" />
      <img name="Banner_gr1_3.jpg" timestamp="2017-07-06T20:01:01Z" url="http://ip.hyperbody.nl/images/d/df/Banner_gr1_3.jpg" descriptionurl="http://ip.hyperbody.nl/index.php/File:Banner_gr1_3.jpg" ns="6" title="File:Banner gr1 3.jpg" />
      <img name="Banner_group1.jpg" timestamp="2017-07-06T16:16:07Z" url="http://ip.hyperbody.nl/images/1/11/Banner_group1.jpg" descriptionurl="http://ip.hyperbody.nl/index.php/File:Banner_group1.jpg" ns="6" title="File:Banner group1.jpg" />
      <img name="Bb1.jpg" timestamp="2017-05-19T09:17:48Z" url="http://ip.hyperbody.nl/images/4/44/Bb1.jpg" descriptionurl="http://ip.hyperbody.nl/index.php/File:Bb1.jpg" ns="6" title="File:Bb1.jpg" />
    </allimages>
  </query>
</api>