Thanks for writing in! Because what you are trying to accomplish requires a template customization, we would highly to suggest that you use a child theme. This allows you to make code changes that won’t be overwritten when an X update is released. After your child theme is setup, please review how we recommend making template changes in Customization Best Practices.
After the child theme is set up, please add the following code in your child theme’s functions.php file
remove_action( 'woocommerce_product_thumbnails', 'woocommerce_show_product_thumbnails', 20 );
add_action( 'woocommerce_after_single_product_summary', 'woocommerce_show_product_thumbnails', 5 );
Please note that custom coding is outside the scope of our support. Issues that might arise from the use of this custom code and/or further enhancements should be directed to a third party plugin creator or a developer.