Love the plugin and I'm making a contribution, but I would like to request a couple (I think, minor) change in the UI.
1. When you go through the Create New Gallery > Add Images sequence, the next step for most people would be Manage Gallery -- probably the one they just created.
So it would make life much easier for users to have a Manage Gallery button on the Done screen that displays after Images are added to a gallery. I'd set it up so that it defaults to the Gallery to which the images were added.
2. On the Add Gallery / Images screens, the most recently added gallery is displayed in the reverse order list of galleries. That's a great thing because it saves lots of scrolling. Could you carry this setting over into other gallery listings too? Or in Settings, let the user determine how galleries are listed?
Thanks to you and the NextGen community for some awesome coding!