Rendering an image on a WooCommerce product page - wordpress

Question

Using the Advanced Custom Fields plugin, I am trying to render an image on a single product page in WooCommerce.
I found this snippet of code from someone who is doing the same thing, but is rendering a text field instead. How would I change this to render an image?
add_action( 'woocommerce_single_product_summary', 'woocommerce_template_top_category_desc', 1 );
function woocommerce_template_top_category_desc (){
$terms = get_the_terms( $post->ID, 'wc-attibute-class' );
if ( !empty($terms)) {
$term = array_pop($terms);
$text= get_field('txt-field', $term);
if (!empty($text)) {
echo $text;
}
}
}
So far I have this, but it's not working. The add action is correct because I was using it for something else, but starting at $terms is where I get lost and is obviously not right.
add_action( 'woocommerce_product_thumbnails' , 'add_below_featured_image', 9 );
function add_below_featured_image() {
$terms = get_the_terms( $post->ID, '496' );
if ( !empty($terms)) {
$term = array_pop($terms);
$image = get_field('banner_feedback', $term);
if (!empty($image)) {
echo $image;
}
}
}

Answer 1

Figured it out.
add_action( 'woocommerce_product_thumbnails' , 'add_below_featured_image', 9 );
function add_below_featured_image() {
if( is_single( pageidhere ) ) {
echo '<br><img src="urlhere">';
}
}

Answer 2

Steps to add custom gallery below featured image in woocommerce single product page(you can modify suitably to add just a single image):
Create an ACF for Image Gallery.
Copy the template for product-image.php from /plugins/woocommerce/templates/single-product to themes/your-child-theme/woocommerce/single-product/
Add the following code to product-image.php just before the closing div of
"images"
Add the images you want in the gallery to your single product admin page in the ACF custom field.
`
<?php $images = get_field('product_image_gallery'); ?>
<div class="mycustom_image_gallery">
<?php if($images): ?>
<div class="popup-gallery">
<?php foreach( $images as $image ): ?>
<a href="<?php echo $image['url']; ?>"
class="lightbox-link"
title="<?php echo $image['caption']; ?>"
data-description="<?php echo $image['description']; ?>">
<div class="image-wrap">
<img src="<?php echo $image['sizes']['thumbnail']; ?>">
</div>
</a>
<?php endforeach; ?>
</div>
<?php endif; ?>
</div>
`