Hi!
Dried cellular debris often forms a golden yellow crust after a hair transplant, this tends to drop off in a few days and the underlying hair will usually grow out normally
All the best!
It is best to ask your surgeon about post operative issues as each doctor has their unique technique. In general, front hair line is created with single hair grafts.
It is best to ask your surgeon about post operative care as each doctor has their unique regimen. There isn't much you can do at this point. The best thing is to go back and see your doctor for a proper examination.