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>
    <allimages>
      <img name="Beknur_Kissikov.jpg" timestamp="2017-10-17T05:36:48Z" url="http://en.encyclopedia.kz/images/4/4c/Beknur_Kissikov.jpg" descriptionurl="http://en.encyclopedia.kz/index.php/File:Beknur_Kissikov.jpg" ns="6" title="File:Beknur Kissikov.jpg" />
      <img name="Dreams.metroeve_encyclopedia-dreams-meaning.jpg" timestamp="2017-05-03T11:42:41Z" url="http://en.encyclopedia.kz/images/1/10/Dreams.metroeve_encyclopedia-dreams-meaning.jpg" descriptionurl="http://en.encyclopedia.kz/index.php/File:Dreams.metroeve_encyclopedia-dreams-meaning.jpg" ns="6" title="File:Dreams.metroeve encyclopedia-dreams-meaning.jpg" />
      <img name="Kobyz.png" timestamp="2017-05-03T11:31:24Z" url="http://en.encyclopedia.kz/images/3/3b/Kobyz.png" descriptionurl="http://en.encyclopedia.kz/index.php/File:Kobyz.png" ns="6" title="File:Kobyz.png" />
      <img name="Kobyz2.jpg" timestamp="2017-05-03T12:16:44Z" url="http://en.encyclopedia.kz/images/e/e0/Kobyz2.jpg" descriptionurl="http://en.encyclopedia.kz/index.php/File:Kobyz2.jpg" ns="6" title="File:Kobyz2.jpg" />
      <img name="Nazarbayev.jpg" timestamp="2017-05-03T14:52:18Z" url="http://en.encyclopedia.kz/images/5/54/Nazarbayev.jpg" descriptionurl="http://en.encyclopedia.kz/index.php/File:Nazarbayev.jpg" ns="6" title="File:Nazarbayev.jpg" />
      <img name="Qorqyt.jpg" timestamp="2017-05-03T11:31:55Z" url="http://en.encyclopedia.kz/images/c/c9/Qorqyt.jpg" descriptionurl="http://en.encyclopedia.kz/index.php/File:Qorqyt.jpg" ns="6" title="File:Qorqyt.jpg" />
      <img name="Steppe-flower.jpg" timestamp="2017-05-03T12:36:56Z" url="http://en.encyclopedia.kz/images/7/70/Steppe-flower.jpg" descriptionurl="http://en.encyclopedia.kz/index.php/File:Steppe-flower.jpg" ns="6" title="File:Steppe-flower.jpg" />
      <img name="Казахстан3.jpg" timestamp="2017-05-03T11:32:51Z" url="http://en.encyclopedia.kz/images/a/a2/%D0%9A%D0%B0%D0%B7%D0%B0%D1%85%D1%81%D1%82%D0%B0%D0%BD3.jpg" descriptionurl="http://en.encyclopedia.kz/index.php/File:%D0%9A%D0%B0%D0%B7%D0%B0%D1%85%D1%81%D1%82%D0%B0%D0%BD3.jpg" ns="6" title="File:Казахстан3.jpg" />
      <img name="Кобыз.-2002.-Бронза.-Караганда.jpg" timestamp="2017-05-03T11:32:15Z" url="http://en.encyclopedia.kz/images/1/10/%D0%9A%D0%BE%D0%B1%D1%8B%D0%B7.-2002.-%D0%91%D1%80%D0%BE%D0%BD%D0%B7%D0%B0.-%D0%9A%D0%B0%D1%80%D0%B0%D0%B3%D0%B0%D0%BD%D0%B4%D0%B0.jpg" descriptionurl="http://en.encyclopedia.kz/index.php/File:%D0%9A%D0%BE%D0%B1%D1%8B%D0%B7.-2002.-%D0%91%D1%80%D0%BE%D0%BD%D0%B7%D0%B0.-%D0%9A%D0%B0%D1%80%D0%B0%D0%B3%D0%B0%D0%BD%D0%B4%D0%B0.jpg" ns="6" title="File:Кобыз.-2002.-Бронза.-Караганда.jpg" />
    </allimages>
  </query>
</api>