Make the "Image(s)" sortable or make the latest entry be first.
If you save the page with a bunch of items, you have to scroll to bottom to add new ones.

Make url selectable from Joomla site menu.

General Settings:
Be able to set the number of images displayed.
Be able to set if they are displayed randomly or in order.

Since mobile devices do not allow mouseover events, it would be good to have the option to display fixed Image Caption Title and Image Caption Text.