Previewing a Gallery is a great way to make sure you're happy with all of the customizations and settings you've applied before sharing it with your client! To preview a published Gallery, click on "Galleries & Apps" at the top of your Collection.
In the Galleries & Apps window, click Preview to open your client's Gallery in a new tab:
If you have any questions or need additional help, feel free to contact us in the chat bubble in the lower right-hand corner of your dashboard. We're always happy to help!