In your site, there is a reserved page for each vendor which includes all the information about his/her profile and the list of products he/she owns.
To have access to the vendor’s page, just add /vendor/vendor-name to the site address.
For example https://mysite.com/vendor/usa88.
You can edit the vendor slug through Vendor store slug prefix that you find in the Frontpage tab of the plugin settings dashboard.
The global administrator can set the Style for header image in vendor store page entry, choosing from two different layouts to show the page, in YITH Plugins -> Multi Vendor -> Frontpage.