Good job sticking with the program, learning on your own, and getting to a coach. You're doing quite a bit correctly, but I'm pretty sure you're going to get Rip's "Do not post above parallel squats on this board." Your first first rep looks pretty much dead on - can you do them all to that depth?
At 170 lb, are you eating to gain weight?
If you can get your camera a bit lower, that would be a better angle.