WP Site Portfolio plugin will add to you wordpress admin a new post type and menu item that will give you the ability to showcase your work to potential clients.
The plugin comes with shortcodes to show each website or theme you created in 3 view options: desktop, tablet and mobile.
All you need to do is create a new Site portfolio item, give it a title, add featured image and enter the website URL to create the preview.
the shortcode will add a beautyfull grid layout with default 3 items in a row, you can change the layout via the wp customizer.
You can customize the size of each view option and add your logo to the toolbar in the settings page.
You can create categories and set each Site Portfilio item to a categiry.
You can customize the colors of the preview (toolbar bg, title color etc…) on the wp customizer.

Wp Site portfolio