Get rid of Picture Wrap

Hi,

In my gallery page, when I clicked the picture in pic1, it shows the featured picture.
But I want an external link when I clicked the picture.

someone help?

(1)
https://i.imgur.com/IdNyRUE.png
(2)
https://i.imgur.com/Aivuue2.png

I think this is the code

<?php
/*
Template Name: Gallery Page - 3 column with sidebar
*/

get_header(); ?>

<!--Main begin-->
<div id="main" class="round_8 clearfix">

	<!-- Breadcrumb begin -->
	<div class="pad-left-10">
	<?php if (function_exists('pkb_breadcrumbs')) pkb_breadcrumbs(); ?>
    </div>
	<!-- Breadcrumb end -->

	<?php if ( have_posts() ) while ( have_posts() ) : the_post(); ?>

	<!-- Page title begin -->
	<div class="page_title round_6">
		<h1 class="replace">
			<?php if ( is_front_page() ) { ?>
				<?php the_title(); ?>
			<?php } else { ?>
				<?php the_title(); ?>
			<?php } ?>
		</h1>
	</div>
	<!-- Page title end -->

	<div id="content-clear" class="left alpha omega">

		<!-- Filter Bar begin -->
		<div id="filter-bar-container" class="pad-left-10">
			<ul id="filter-bar" class="clearfix" data-option-key="filter">
				<li class="segment-1"><a class="active all" data-option-value="*" href="#"><?php _e('Hepsi', 'peekaboo'); ?></a></li>
				<?php wp_list_categories(array('title_li' => '', 'taxonomy' => 'media-type', 'walker' => new Walker_Category_Filter())); ?>
			</ul>
		</div>
		<!-- Filter Bar end -->

		<?php endwhile; ?>

		<?php  $wp_query = new WP_Query();
			   $wp_query->query('post_type=gallery&posts_per_page=-1'); ?>

<!-- Gallery Wrap begin -->

<div id="gallery-wrapper">

			<!-- Module Wrapper begin-->
			<ul id="module-wrapper" class="module-3-col">

				<?php $count = 1; ?>
				<?php if ($wp_query->have_posts()) : while ($wp_query->have_posts()) : $wp_query->the_post();
					  $terms = get_the_terms( get_the_ID(), 'media-type' );  ?> 

				<li class="<?php foreach ($terms as $term) { echo strtolower(preg_replace('/\s+/', '-', $term->name)). ' '; } ?> col_201 module" data-id="id-<?php echo $count; ?>">

					<!-- Post begin -->
					<div  id="post-<?php the_ID(); ?>" <?php post_class('gallery_module'); ?> >	

						<?php
						if ( (function_exists('has_post_thumbnail')) && (has_post_thumbnail()) ) { ?>
						<div class="post-thumbnail">
							<?php pkb_colorbox(get_the_ID(), 'gallery-thumbnail-m'); ?>
						</div>
						<?php } ?>

						<h4 class="post-title"><a href="<?php the_permalink(); ?>" title="<?php printf(__('Link to %s', 'peekaboo'), get_the_title()); ?>"><?php the_title(); ?></a></h4>

					</div>
					<!-- Post end -->
				</li>
				<?php $count++; ?>
				<?php endwhile; endif; ?>

			</ul>
			<!-- Module Wrapper end-->
		<?php wp_reset_query(); ?>
		</div>

		<!-- Gallery Wrap end -->
	</div>

	<!-- Sidebar begin-->
    <div  id="sidebar" class="left">
		<?php get_sidebar(); ?>
    </div>
	<!-- Sidebar end-->    

<?php get_footer(); ?>