6 wks post FUE hair transplant. Has my donor area been overharvested and were grafts taken from outside the "safe zone?" (photo)

The procedure took place on the 11th April 17 and 2600 grafts transplanted. I'm worried that one area has been over harvested as the hair in the donor area seems considerably thinner in this area. I'm also concerned as some grafts have been harvested from very high up on my head, which to me seems unnecessary due to the number of grafts needed to begin with.