FUE crown 850 grafts. What can I expect? (Photo)

Hello gentlemen, I had a hair transplant almost 7 months ago, at crown area, the area was not wide but intense, about 850 grafts.Till now the result looks poor, there are some spots that there is no hair growth …what can I expect?does the crown area need more time?!!I feel when I put mi finger new hair like needles since time,but no result till now.I Thank you, an I put some photos to see