Hi
i think the the graph for acceleration in sixth picture is wrong because at the maximum height the acceleration will be zero and when the object is falling acceleration is positive........ i have made the graph see picture below
As it goes UPWARDS it -ve since it's OPPOSING the direction of gravity , and then when it
s going DOWNWARDS it's +ve since it's in the direction of gravity.
ALL together *based on what my teacher said* it's NEGATIVE , and hence it's NOT what you have drawn mate