Home Loop with Network Images

<?php
/*
Template Name: Home
*/
?>
<?php get_header() ?>
   <div class="row">
    <?php if ( is_user_logged_in() ) { ?>
    <div class="fourcol">
    <?php get_sidebar() ?>
    </div>
    <div class="eightcol">
      <div class="page">
      <?php
      global $current_user;
      get_currentuserinfo();
      if ($current_user->primary_blog) {
      $primary_dash_url = get_blogaddress_by_id($current_user->primary_blog) . 'wp-admin/';
      $primary_url = get_blogaddress_by_id($current_user->primary_blog);
      $primary_blog = get_blog_details($current_user1->primary_blog);
      }


      ?>
      <h3>Share</h3>
      <div class="welcomeText">
      <h4>Hello <?php echo $current_user->display_name; ?>.
      <?php switch_to_blog($current_user->primary_blog);
      $terms = get_terms("trip");
      $count = count($terms);
      $published_posts = wp_count_posts()->publish;
      if($published_posts > 0 && $count > 0){
      echo("Your site <a href=\"".get_bloginfo('url')."\">".get_bloginfo('name')."</a> has ".$published_posts." posts in ".$count);
      if ($count > 1){echo (" trips.");} else {echo (" trip.");}
      echo("<br/><a href=\"".$primary_dash_url."post-new.php\"> Add more posts</a> or <a href=\"".$primary_dash_url."edit-tags.php?taxonomy=trip\">create a new trip.</a>");
      } else {
      echo("You haven't published anything yet.</h4><a href=\"".$primary_dash_url."\" class=\"getStarted bigbutton\">Get Started</a>");
      }
      echo("</div>");
      restore_current_blog();
      ?>

        <div class="clear">
        <h3>Explore</h3>
        <h4>Random images from across the Network</h4><?php

        $myimages = network_query_posts(array('post_type'=>'attachment','posts_per_page'=>10, 'orderby'=>'rand'));
        if( network_have_posts() ) {
        network_the_post();
        foreach($myimages as $image){
        echo var_dump($image);
        }
        }


        ?>
        </div>
      </div>
   </div>
  </div>
  <?php } else {
  include(dirname(__FILE__).'/visitor.php'); ?>
<?php } get_footer() ?>