Stewie mate, looking at the before pics and you now at 6 months 2 years on, I can honestly say it's taken way more than a decade off you and looks great, especially for the amount of grafts that you've had. Not sure how many hairs are on the average top of the head, but 4500 is never going to give you perfect density all over. Certainly you don't look balding anymore, just standard thinner hair which loads of guys naturally have anyway.