Thanks a lot !
It’s working !
$images = get_field('gallery');
if ($images) : ?>
<div>
<?php foreach ($images as $image) :
$colors = get_field( 'essays', $image['ID'] );
$value = $colors['value'];
$label = $colors['label'];
?>
<?php echo esc_attr($value); ?>
<?php echo esc_attr($label); ?>