What are these patches? Is my donor area ruined? (Photo)

17 days is still very early on in the post op phase. It looks like you've lost your scabs and I am not able to appreciate any redness which are good signs. The irregular texture of the skin is difficult to see from your pictures. Its true that sometimes grafts are placed in holes to deep and can...

Visible scar is because of implantation technique. Grafts may be improperly  implanted and burried in to  skin .If you  are not satisfy with  result of your first operation, would better to check those parameters and think about to plan a second HT to increase the density and hide the scar .

It is best to ask your surgeon about post operative care as each doctor has their unique regimen.