Maybe we are not the same picture Karl... I have avoided to use the PIXIESET as an example but I think I have no other option to demonstrate.
Here's my pixieset account with client login page: http://larryanda.pixieset.com/
Each of the subgalleries/folder is password protected and will present you with a login page when clicked. I hope I get it right to advise what I have in mind.
What I mean is.... aside from the other part of your website like CONTACT US, ABOUT US, ETC. The GALLERY itself should have this kind of login page as opposed to the use of the Native Login prompt that v.0.11 is currently have.