Hi John, your shots have a lot going for them. The eyes are in focus and the lighting is pleasant. Your choice of aperture also leads to a nice gentle blurring on the subjects shoulders. My only suggestion is in relation to cutting off the tops of the head. If you are going to do, I'd cut off a fraction more to make everyone realise it is intentional. With photos such as 3604, cutting off a small bit makes you wonder if it was framing problem rather than an artistic choice. With most portraits, you can crop the tops quite aggressively without problems and sometimes this adds a little more impact to the photos.