Yes of course. Customers can share the custom look on their social media channels created with Magento 2 Shop by Look Extension.
Read this guide on How to Configure Shop by Look Extension in Magento 2 to create a custom look with this extension.
Here are the few more resource to help you get most out of this Magento 2 Shop by Look Extension.
How to Create a Lookbook in Magento 2
Increase the Power of Cross-Selling Products With Shop By Look Magento 2 Extension