It may be just a cool rock. But if you’re seeing something other than the rudimentary shape of it, the photos are not clear and aren’t helping us see what it is that you’re trying to show.
Third picture looks like a turtle and turtle shell head on.
..... I can seen the manatee....but we’re just friends. She had to be exposed way before I ever showed up, I didn’t even go wading.... she said Cheryl, not surely....