Show HN: Sortbox – Organize your Dropbox
sortmybox.com
sortmybox.com
If you just have two steps in the slideshow, I would recommend making the images more narrow and having them side-by-side with an arrow in between. This would mean that a user could easily see the flow of the process (step one: make filter, step two: enjoy filter) and read at their own pace.
It's BSD licensed on GitHub in case anyone wants to check out the source: https://github.com/mustpax/sortbox