Aidorm on "Show all post with attached image on a single Page"

Hi,

I'm trying to set up a page that shows all my post with image in different categories.

I searched for any relevant post but all I can find is "List all images attached to a post".

I tried using get_post function but it only displays all image.

<?php
$args = array( 'post_type' => 'attachment', 'posts_per_page' => -1, 'post_status' => 'any', 'post_parent' => null );
$attachments = get_posts( $args );
if ( $attachments ) {
	foreach ( $attachments as $post ) {
		setup_postdata( $post );
		the_title();
		the_attachment_link( $post->ID, false );
		the_excerpt();
	}
	wp_reset_postdata();
}
?>

Can someone help me out? Thanks!