I have created an extra field for image descriptions (image_description)
the whole thing is integrated with me with <figcaption>
<div class="druckerimage">
<?php $image = get_field('image');
if( !empty($image) ): ?>
<figure class="gesamt">
<img src="<?php the_field('image'); ?>" alt="<?php the_field( 'modell' ); ?>" class="druckerimg" />
<figcaption><?php the_field( 'image_description' ); ?></figcaption>
</figure>
<?php endif; ?>
</div>
maybe this will help you?!?
