4 months after FUE 3500 grafts (Photo)

It can take six to twelve month after a hair transplant surgery to see results. So at the fourth month it may be too early to judge.

It does not make sense why you have so much hair growth in the crown area where you had no grafts placed because you had an advanced degree of hair loss and headed to a Norwood 7.  Finasteride and minoxidil should not create this sort of response in 4 months.  You have some hair in the top and front where the grafts were placed, but lower density than in the crown where you had no grafts placed.  It looks more like two different scalps.  The results are too strange to comment on.  

You need to wait until 10 to 12 months to a better evaluation.you had a good number of grafts transplanted, but also an advanced degree of baldness (norwood VI-VII). So you'll probably want another procedure. It seems that your response to medical treatment is very good for the evolution of your crown. Continue medial treatment and think about another Surgery after 1 year.