No, nothing dramatic here. Not even a complete photograph of this Dolphin.
The dorsal fin is the critical part. They are like finger prints. When documenting Dolphin strands it is critical to know if any new animals have joined and learned the technique.
Compare the fins of each. You will notice the back edge of the dorsal is shaped differently.
While creating stills for a friends project with the LowCountry Marine Mammal Network I did grab a few clear fins for an ID. They were able to ID 4 distinct Dolphins during the stranding.
Click to learn more about LMMN.