this is an exceptional plugin but i have a consideration about inserting images.
when inserting images why doesn't open the wp media file with pagination? i think it's more usable than yours. if you have to choose an old foto it's very hard to scroll 10 result at time.
then, after inserting images and you would like to link to the images you have open again that image (so one by one in your slideshow) copy and paste the link. are you considering an easy way to do that? probably by default you can automatically add the image url.
i hope you can read this few lines and keep them in mind for your next update.
Keep it up with your wonderful work!