Here's an animation of those images, which present a tour of the outer part of Saturn's main ring system.
Saturn's rings with a bright, four-pointed star of light at their center
Credit: NASA / JPL / SSI / Emily Lakdawalla
For help in navigating this image, you might want to compare each frame to this beautiful panorama of the entire ring system:
Panoramic scan across Saturn's rings
Cassini scanned across the unlit side of Saturn's rings, acquiring images through multiple color filters to make this approximately natural color panorama, which shows details as small as 6 kilometers across (which is much larger than any of the individual particles within the rings). Because the light is shining from the back of the rings toward Cassini, parts of the rings that are mostly transparent but contain lots of fine dust, like the F ring and the Cassini division, are particularly bright.