Had my 4th adjustment about a week ago, but I've been too lazy to take pictures and post here.
I finally broke a bracket in between adjustments, and didn't even notice for awhile. I just thought that specific bracket looked weird, until one day, I saw food stuck underneath it, and I realized it was off the tooth. When I finally called, I couldn't get in because of both me and my ortho being out of town for consecutive weeks, so we just dealt with it at this adjustment. Now I am afraid to eat anything too crazy for fear of breaking something else!
Also went in for a cleaning at my dentist's office. I had finally caved to my ortho's recommendation of going every 3 months, but because of some rescheduling (and being that since my dentist and ortho are across the street from each other, and because I'd have to get my wire out anyway, it makes more sense to just do it on an adjustment day), I ended up closer to the 6 month mark anyway. Was due for an exam and x-rays, and my dentist says everything looks good and stable, and says things are completely different than when I first came in to see him (just over a year ago now). Considering the mess of a mouth that I had before, this was good to hear. The hygienist was super happy with my hygiene, and thinks every 6 months is plenty, so I guess that's that.
Have the same wire on the bottom (.018 square), and .016 round on top. Still have powerchains on top, and have them on the bottom again. My ortho told me to stop wearing rubber bands for now, and I am enjoying not having the added force on my jaw. I think they were making me clench my jaw in my sleep, because I am noticing less soreness in the morning. Back to having a bunch of wire ties, which I'm not thrilled about, because they are a giant pain when I floss (they snag ALL THE TIME).
The tech was having a little bit of trouble getting the wire engaged onto one of my brackets, so she called my ortho over again, and at that point, he decided to reposition a bracket. That was NOT fun - it HURT when he pried it off! It also set off the soreness, but I noticed that my teeth had shifted within 2 hours! I was noticing that the right side of my uppers were starting to slope slightly upwards, and the central incisors were uneven. That fixed itself after the bracket was repositioned...

Top is with my wires out, just before my cleaning appointment, bottom is about 2 hours after my adjustment.
Anyways, progress photos. I am quite impressed at how much my bottom arch has straightened out! It still feels pretty jagged when I run my tongue across the back of my teeth, but from the front, it looks almost (but not quite) straight. Left side is the day I got braced, right was taken last week:

Can't really see much movement in the molars/wisdom teeth in those photos, but I am starting to feel my extraction gaps get smaller there.
I was starting to think that I was starting to reach the point where my progress is slowing down, because I thought that I was barely seeing any movement. Seeing these photos side-by-side, though, I realized that my teeth are still indeed moving. I do think that most of my movement happens in the first few days after an adjustment, and then I feel like nothing happens. But I realize that my teeth are CONSTANTLY moving, based on how my bite is and which teeth are sore every morning. My face is also changing - it is longer and less round, which I actually like. And my lips seem fuller, too...
My gap is FINALLY starting to close up a bit. They are far less noticeable now. I'm guessing these will finally start closing up in the next month or two, based on how things have been moving. I CAN'T WAIT for that to happen!!!

Crazy how much my bite has changed too. My dentist said during my exam that he usually asks patients if they have noticed changes in their bite, but in my case, clearly it has!
Next adjustment second week of September.
On a side note, I've been waking up with white spots on my teeth. They disappear within an hour or so. My dentist did once mention when color matching for fillings in my front teeth that teeth turn lighter in color when they are dehydrated, so I'm guessing that's what it is, since I've been turning into a mouth breather in my sleep lately. I figured I would ask my ortho about it at my next appointment, but they were totally freaking me out!