This plugin only works with woocommerce variable products. The variation dropdown will be added on shop page. When user will choose variation options, price, image, description will be displayed based on chosen variation.
The manual installation method involves downloading Wcik Variation Shop’ plugin and uploading it to your webserver via FTP application. You may find more instructions on how to do this here (https://codex.wordpress.org/Managing_Plugins#Manual_Plugin_Installation).