Images not displayed properly (cropped; not fitting)
You will have to set the proper image sizes (WooCommerce's Settings) corresponding to the theme that you're using. If you're using our theme, Kingdom, here are the proper image sizes:
If you're using other theme than Kingdom, then please read this: http://docs.woothemes.com/document/using-the-appropriate-product-image-dimensions/ .
Then, in both cases, use the Regenerate Thumbnails plugin to regenerate the product's thumbnails ( https://wordpress.org/plugins/regenerate-thumbnails/ ).