Hi.
Thanks for your interest in this plugin.
If you mean that you want to style each shortcode differently then you can do that. You can use CSS to customize each shortcode differently. You can either use wordpress page-id- class if different shortcodes are present on different pages or you can use CSS pseudo selectors to customize on the same page.
For example,
.page-id-8 .twb_wc_reviews_wrapper .twb_wc_reviews { /*CSS here */ }
or
.twb_wc_reviews_wrapper:first-of-type .twb_wc_reviews { /*CSS here */ }
It should be easy to do this.
In future I’ll add a dynamic ID to each shortcode output so It would be easy to customize without any of above method.