If there is a trust issue, you can ask for the surgical record and a record of the number of grafts should be there. Trust seems to be a problem but the photos don't help me help you.
The size of punch used differs from surgeon to surgeon. While it is personal preference, it is the common understanding among most certified and experienced hair transplant surgeons that the larger the punch size the higher the risk of scarring. I prefer to only use a 0.7mm punch to extract...