We can’t see how far down it goes because the seat is in the way.
But we CAN see that his black hair sticks out the bottom of his hat.
On image #5 we see the whole bottom of the hat and there is no black hair sticking out the bottom. And the reddish hair that DOES stick out there goes down no more than maybe an inch. That is NOT Jake’s hair. He had black hair sticking out from his hat, drawn from the sides into a ponytail in the middle at the back of his neck. No sign of ANY of that in image #5.
No, Butter, it goes down past the top edge of the seat.
Jake's hair is not black.