Ballard believes (or believed) that the flood story is a distorted recollection of the flooding of the Black Sea. Doubtless some animals died, perhaps many if the flooding was catastrophic (that is uncertain)
From your images you will see a lot of images of Heracleion and nearby cities in Egypt which sank in historic times and a lot of natural formations which resemble buildings. And none of them have any connection to the Black Sea Flood, or indicate that there was a flood which covered the entire world.
You might note that the Black Sea and the various other sites are all still underwater, so they can hardly show flooding at sites currently above sea level.