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 gaicontinue="Brooder_Timeline.png" />
  </query-continue>
  <query>
    <pages>
      <page pageid="193" ns="6" title="File:20150907 072040.jpg" />
      <page pageid="197" ns="6" title="File:20150907 072744.jpg" />
      <page pageid="195" ns="6" title="File:20150908 073017.jpg" />
      <page pageid="194" ns="6" title="File:20150913 080802-1-.jpg" />
      <page pageid="1191" ns="6" title="File:Acr2.jpg" />
      <page pageid="47481" ns="6" title="File:Agronimo.jpg" />
      <page pageid="47207" ns="6" title="File:Agronomo.jpg" />
      <page pageid="161" ns="6" title="File:Andre with cows.jpg" />
      <page pageid="130" ns="6" title="File:Australorp.jpg" />
      <page pageid="47431" ns="6" title="File:Brooder Projects Sketch.jpg" />
    </pages>
  </query>
</api>