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="Bolnes_wimpel.jpg" />
  </query-continue>
  <query>
    <allimages>
      <img name="B79E5776-5A7A-44AA-8D65-389E70127FBF.jpg" timestamp="2016-02-07T21:46:47Z" url="http://www.sleepbootlambert.nl/wiki/images/d/d1/B79E5776-5A7A-44AA-8D65-389E70127FBF.jpg" descriptionurl="http://www.sleepbootlambert.nl/wiki/index.php?title=Bestand:B79E5776-5A7A-44AA-8D65-389E70127FBF.jpg" ns="6" title="Bestand:B79E5776-5A7A-44AA-8D65-389E70127FBF.jpg" />
      <img name="BOLNES.JPG" timestamp="2013-10-13T17:40:17Z" url="http://www.sleepbootlambert.nl/wiki/images/1/1f/BOLNES.JPG" descriptionurl="http://www.sleepbootlambert.nl/wiki/index.php?title=Bestand:BOLNES.JPG" ns="6" title="Bestand:BOLNES.JPG" />
      <img name="Bambi_aan_het_werk.jpg" timestamp="2013-06-27T19:10:36Z" url="http://www.sleepbootlambert.nl/wiki/images/e/ed/Bambi_aan_het_werk.jpg" descriptionurl="http://www.sleepbootlambert.nl/wiki/index.php?title=Bestand:Bambi_aan_het_werk.jpg" ns="6" title="Bestand:Bambi aan het werk.jpg" />
      <img name="Bambi_in_Rotterdam.jpg" timestamp="2013-06-16T08:36:19Z" url="http://www.sleepbootlambert.nl/wiki/images/4/44/Bambi_in_Rotterdam.jpg" descriptionurl="http://www.sleepbootlambert.nl/wiki/index.php?title=Bestand:Bambi_in_Rotterdam.jpg" ns="6" title="Bestand:Bambi in Rotterdam.jpg" />
      <img name="Bolnes_Fabriekshal_1950.jpg" timestamp="2011-11-15T18:55:27Z" url="http://www.sleepbootlambert.nl/wiki/images/d/d6/Bolnes_Fabriekshal_1950.jpg" descriptionurl="http://www.sleepbootlambert.nl/wiki/index.php?title=Bestand:Bolnes_Fabriekshal_1950.jpg" ns="6" title="Bestand:Bolnes Fabriekshal 1950.jpg" />
      <img name="Bolnes_Handleiding_pag_11.pdf" timestamp="2013-10-13T17:15:31Z" url="http://www.sleepbootlambert.nl/wiki/images/5/53/Bolnes_Handleiding_pag_11.pdf" descriptionurl="http://www.sleepbootlambert.nl/wiki/index.php?title=Bestand:Bolnes_Handleiding_pag_11.pdf" ns="6" title="Bestand:Bolnes Handleiding pag 11.pdf" />
      <img name="Bolnes_Harmonie_III.jpg" timestamp="2013-02-15T21:19:31Z" url="http://www.sleepbootlambert.nl/wiki/images/7/74/Bolnes_Harmonie_III.jpg" descriptionurl="http://www.sleepbootlambert.nl/wiki/index.php?title=Bestand:Bolnes_Harmonie_III.jpg" ns="6" title="Bestand:Bolnes Harmonie III.jpg" />
      <img name="Bolnes_Mevo_2.jpg" timestamp="2015-11-18T08:25:20Z" url="http://www.sleepbootlambert.nl/wiki/images/b/b7/Bolnes_Mevo_2.jpg" descriptionurl="http://www.sleepbootlambert.nl/wiki/index.php?title=Bestand:Bolnes_Mevo_2.jpg" ns="6" title="Bestand:Bolnes Mevo 2.jpg" />
      <img name="Bolnes_Mevo_2_type_plaatje.jpg" timestamp="2015-11-18T08:24:59Z" url="http://www.sleepbootlambert.nl/wiki/images/8/8b/Bolnes_Mevo_2_type_plaatje.jpg" descriptionurl="http://www.sleepbootlambert.nl/wiki/index.php?title=Bestand:Bolnes_Mevo_2_type_plaatje.jpg" ns="6" title="Bestand:Bolnes Mevo 2 type plaatje.jpg" />
      <img name="Bolnes_gloeikopmotoren.jpg" timestamp="2011-11-16T19:58:31Z" url="http://www.sleepbootlambert.nl/wiki/images/2/29/Bolnes_gloeikopmotoren.jpg" descriptionurl="http://www.sleepbootlambert.nl/wiki/index.php?title=Bestand:Bolnes_gloeikopmotoren.jpg" ns="6" title="Bestand:Bolnes gloeikopmotoren.jpg" />
    </allimages>
  </query>
</api>