The first picture could be real, but that does not preclude the perspective from being way off.
If instead of an 8' jelly, far from the camera, think about a 4" jelly very close to the camera.
None of the jelly's threads actually pass underneath or behind the diver.
If the picture was to scale, you would be looking at a 30 + foot jelly. Sorry, don't believe it.
But a 6" - 2 foot jelly closer to the camera than the diver, yes, that would look exactly like that.