Your impact position mirrors the impact position that you worked on in the ¼ swing.
Any differences are as a result of greater speed and length of swing.
1. At impact your weight is moving forward from right leg to left leg as your arms swing back down your chest
2. You can see how the hinge that I created in the backswing has been released and how my right arm has straightened out
3. My shoulders have turned back to where my chest is square to the ball or just slightly more rotated open than it was at address.
The torso is an important source of power and you should aggressively open up your chest as you swing your arms back down your chest.