How to add Thumbnails to Wordpress Categories?

<?php
$terms = apply_filters( 'taxonomy-images-get-terms', '' );
//print_r($terms);
if ( ! empty( $terms ) ) {
    foreach( (array) $terms as $term ) {
      // echo wp_get_attachment_image($term->image_id,'full');
       // echo $term->name;
//echo  esc_url( get_term_link( $term, $term->taxonomy ) ) ;
?>
<div class="services-box1 three-columns arttlist"><a href="<?php echo esc_url( get_term_link( $term, $term->taxonomy ) ) ;?>"><div class="relative"><?php echo wp_get_attachment_image($term->image_id,'full');?><div class="services-shadow"></div></div></a><div class="services-artists"><a href="<?php echo esc_url( get_term_link( $term, $term->taxonomy ) ) ;?>"><h2 class="jartna"><?php echo $term->name;?></h2></a><p><?php echo $term->description;?></p></div></div>
<?
	}
}
?>