Thanks for submitting your photos. Based on them a straight hairline is not the correct way of a hair transplantation and it will look unnatural. In my opinion you should not go ahead with a straight hairline. Please consult with a surgeon who has extensive experience in hair transplantation. He...
If you had FUE, the extracted hairs will not return. So your donor area would not be perfectly back to its original thickness. If the donor area was not depleted or over harvested it would take several weeks of hair growth to cover any scarring.
Without knowing the details of your first procedure or having a clearer idea of your goals for the second, there's no way to make a recommendation on whether FUT or FUE is better for you. I suggest talking with your original doctor about a second procedure and going from there- but in...