This is merely a string of frames continuing directly from the previous set, showing Sandy's reaction shots as the dolphin swims off. The close-ups alternate with shots of the dolphin, farther and farther out to sea, until it is breeching far off in the distance, the sea lit by the nearly-setting sun.
I like to imagine these as illustrating Willow's Frodo after he finally will have been made whole again....
~ Series Four: Screencaps of Elijah Wood in the "Farewell" close-ups from Flipper:
Click HERE for table of Frodo and Elijah Wood Screencaps.