Progress looks good and your donor area looks really good.
I too, also noticed that at the beginning of of the month (every few months) I felt and saw new hairs had sprouted and then just growth of those the rest of the months.
6 Months (Continued)
Also, since I'm at 6 months and should theoretically be about halfway through my growth, I've included shots with a better camera from the various angles, with and without flash.
Without flash (the darkness softens the images considerably):
Things have developed a bit more at and around the hairline. However, there's an area of what seems to be lackluster growth behind the hairline, in the forelock area, which I'm a bit underwhelmed by, as I haven't noticed any significant changes there over the last month or so. Hopefully it will thicken over the coming months.
I've actually noticed that changes seem to happen in quick bursts in the beginning of the month, and then the hair stays pretty much the same for the rest of the month (like a step function). You may notice this as well by comparing my whole month posts against subsequent half month posts (e.g., 5 and 5.5 months), which show a noticeable change, and between the half month post and the subsequent whole month post (e.g., 5.5 and 6 months), which shows almost no change.
Also, please note that these images were taken the day after a haircut, so there isn't much layering going on.