This is a tough angle to critique from. If you could get a video with the camera more at hip height and a little more off to the side, it would help. That being said, these are pretty solid squats. You're knees do have a tendency to cave in and you need to work on that. I think they may also be sliding too far forward, but it's hard to be sure from this angle. You do have good back extension (though there's nothing wrong with working at getting tighter - or wearing a belt). The bar might be a little high on your back (again, tough angle to be sure), but it's not by much.
Does your squat rack have a mountain view or something?