After you upload images and save listing, you are able to press on edit button on images, if image is in wrong aspect ratio you are able to crop it this way:
This is very tricky in WordPress because of bad WordPress code design. On image and many other links WordPress saving absolute links with domain name.
Our plugins will work out of the box, but some regular wp features like posts or third parity plugins will not work properly.
Plugin https://wordpress.org/plugins/better-search-replace/ may help you with that, to replace domain name in posts and other content.