The first appears to be hanging from the tail hook. The second, it's hard to tell if it's tangled in the net or not. On the first I'm not sure if the tail hook was extended or if that's the way the tail hook stores when it is in the "up" position. The answer to that may help answer whether or not this was a landing incident or a taxi/tie down problem.
The second really looks like a photo from the Forestall incident. That's the Vietnam era fire they had that killed a whole bunch of people. During the fire they were pushing planes off the deck to keep them from adding fuel and explosives to the flames and this may be one of the planes they tried to dump overboard. Not sure if this photo is from that incident, and if it IS in fact a plane tangled in the net then that doesn't match. But I remember seeing photos like that one from Forestal.