Getting image data through custom taxonomy

How do you access image meta data using the custom taxonomy system? I am currently using

get_terms( 'wpmf-gallery-category, [ 'hide_empty', => 0 ]);

to pull in a gallery. I would like access to the image data ( title, captions, url, ect). How can I do that with your taxonomy?

$args     = array(
            'post_status'    => 'any',
            'post_type'      => array('attachment'),
            'tax_query'      => array(
                array(
                    'taxonomy'         => 'wpmf-gallery-category',
                    'terms'            => $gallery_id,
                    'include_children' => false
                )
            )
        );
        $query    = new WP_Query($args);
        $attachments= $query->get_posts();