Where’s her head?? That is clearly her head, Fred. The round thing with a face on it? Lol. And the big yellow vest is around her like a hoody.
No one says anything about not seeing her face. Not all the way through. I start to wonder, why can't I see her face? Is it because her head has slipped forward? Which it should not, because the lifevests are designed to keep the head OUT of the water. Then I notice, her jacket does not appear to be properly worn, it's hanging lose. It looks strange, compared to the others.
Then it seems that the knee/trousers we think we can identify, just might be her HAIR, which isn't black, it's brown. And the black object that was shining in the sun, isn't there anymore.
That's how an inflatable life jacket should be worn and shows how it keeps the head out of the water.
What is interesting about that example, is that the wearer's knees are up and his shoes are visible on the surface. Whether the same applies if the wearer is unconscious I have no idea.