Resource interpreted as Image but transferred with MIME type text/html
Image path is incorrect. It will pick the path of image as http://current_path/images/id-background.jpg.

global $base_url;
$path = $base_url . drupal_get_path('module', 'mymodule') . '/images/id-background.jpg'; // considering the image is placed in your custom module's image directory
$form['id']['myid'] = array(
  '#type' =&gt; 'item',
  '#markup' =&gt; '&lt;div id="divID"&gt;&lt;img src="' . $path . '" alt="ID Picture"/&gt;&lt;/div&gt;'
);