Custom Post,Custom post Query,Dynamic small and big images

<!------------------------------------Custom post Register and global and general query-------------------------------------------->
<!---------------------------------custom Post Register-------------------------------------->
/*Custom post query ==========================================================*/
/* Register Custom Post Types********************************************/
	function create_post_type() {
		register_post_type( 'testimonial',/*You can set any name*/
			array(
				'labels' => array(
					'name' => __( 'Testimonial' ),/*You can set any name*/
					'singular_name' => __( 'Testimonial' ),/*You can set any name*/
					'add_new' => __( 'Add New' ),
					'add_new_item' => __( 'Add New Testimonial' ),
					'edit_item' => __( 'Edit Testimonial' ),
					'new_item' => __( 'New Testimonial' ),
					'view_item' => __( 'View Testimonial' ),
					'not_found' => __( 'Sorry, we couldn\'t find the Testimonial you are looking for.' )
				),
			'public' => true,
			'publicly_queryable' => false,
			'exclude_from_search' => true,
			'menu_position' => 14,
			'has_archive' => false,
			'hierarchical' => false,
			'capability_type' => 'page',
			'rewrite' => array( 'slug' => 'testimonial' ),/*You can set any name*/
			'supports' => array( 'title', 'editor', 'custom-fields' )/*You can use another option here*/
			)
		);
	}
add_action( 'init', 'create_post_type' );
<!------------------------------------------------General Queries----------------------------------------------------->
<?php query_posts('post_type=testimonial&post_status=publish&posts_per_page=10&paged='. get_query_var('paged')); ?>
<!-------------------------------------------------Global Queries------------------------------------------------------>
<?php
	global $post;
	$args = array( 'posts_per_page' => 4, 'post_type'=> 'slider-items');
	$myposts = get_posts( $args );
	foreach( $myposts as $post ) : setup_postdata($post); ?>

<!-----------------------Past code which data actually dynamically shown----------------------------->
	<?php endforeach; ?>
<!----------------------------Slider small Images dynamic code------------------------------------------->
<?php $slider_image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'small-image' ); ?>/*slider small images*/
<li data-thumb="<?php echo $slider_image[0]; ?>">/*slider small images*/
 	<?php the_post_thumbnail('large-image', array('class' => 'slider')); ?>/*slider big images*/
	 <?php the_content();?>/*slider content*/
 </li>