Use Responsive Image Slider to create an images slideshows into Confluence pages.
Its fully responsive to retain width and proportion of the images. Retina friendly with 2x resolution possible. Touch enabled and keyboard navigation finish it off. The slideshow pauses on hover and also shows the navigation arrows at the same time.
It comes with a nice bundle of tricks that's allow you to use at the same time attachments comments as a link, caption title and content.
If all you want to do is create simple, responsive and mobile-friendly images slideshows, then this plugin is the fastest way to get your work done :)