"And as for Kennedy's shoulder look at where Kennedy's body is in relation to the top of the back seat just before the Limo disappears behind the bush."
Ok, we can see where JFK was AS Jackie was climbing out onto the trunk lid, and it seems likely that, after Jackie vacated the rear seat, JFK would have just kept slumping to the left, until he was lying completely across the rear seat.
When Jackie returned to the rear seat, we have to assume she had nowhere to sit, as JFK was lying in her seat. Jackie seems to have gotten herself seated prior to going under the TUP, with Clint Hill clinging to the rear bumper the entire time she did so.
Do you believe Jackie moved JFK's limp body all by herself? Exactly where do you believe she moved him to?
In the two GIF's posted on this thread, which frames from the Zapruder film were used?
"If you're not part of the solution, you're part of the coverup."
Are YOU part of the coverup?
JFK would not have covered the entire width of the rear seat unless he recovered long enough to move his head all the way across and stretch much of his body across the rear seat.
The back seat was wide. Wide enough for Jackie to sit back down, even with JFK slumped over. She could have lifted his head to hold his head on her lap, which was what she was doing when they got to the hospital.
I estimated the width of the rear seat from diagrams of the limousine and estimated it to be 56 inches.
JFK, slumped over, would cover about 44 inches. That would leave 12 inches, wide enough for the slim Mrs. Kennedy to lift his head so she could sit down and scoot over and hold his head in her lap.
It would not be necessary for her to prop up JFK first to make room for her to sit down. And that would have been a bazaar thing for her to do.
The man to Jackie?s right, still sitting up, is Connally, not Kennedy.