First off, Great plugin and yes I have sent a donation.
I would like to see some added item to the Manage Gallery & Gallery Overview. If you have many galleries and images as I do some added management tools would be of great help.
It would be very nice to have a way to list galleries by categories. The categories could be used from WordPress post categories or user created.
Another item is in the Gallery Overview.
In the drop down a delete option to delete all select galleries.
Search galleries, could be by title and/or ID
For the current Search Images, when you find an image and navigate to it, display a link to the gallery it is in.
Again, thank you for this plugin.