If possible maybe in a next update the possibility to collaps the gallery. A set option, or extra code to the shortcode. So the gallery begins collapsed. This will be handy if you have a large list of galleries which you just put on one page/post with a link to uncollaps the gallery next to the name and the show can begin. This way visitors can stay on the same page, instead of having to reload the whole blog everytime and going back and forth.
I know this is somewhat possible with the categories option, but my experience is that most visitors do not look further the their nose is long and need to have everything spelled out.
For the rest I love it, works perfectly and stable.