You can override template of plugin in Theme or customize directly in plugin. Support to change layout in Search, Loop (Shop, Archive, Category page), Single Product, Search Form.
Step 1: You have to make 'ovabrw-templates' folder in wp-content/themes/your-theme/
Step 2: Copy files that need customize from Plugins/ova-brw/ovabrw-templates/ to wp-content/themes/your-theme/ovabrw-templates
If plugin has sub-directory, you have to make the same sub-directory in theme.
Example: You want to change layout of price in shop page or category page: Copy file Plugins/ova-brw/ovabrw-templates/loop/price.php to wp-content/themes/your-theme/ovabrw-templates/loop/ folder.