Lookin' pretty good from that angle.
The miss on your first shot is because you plucked the string slightly. If you look close, you can see the bow jump up then start back down just prior to and at the release. That doesn't happen on the other two shots.
On the other two shots, your release is slightly forward instead of back. It is very, very slight. It's so slight in the video, I'm almost hesitant to bring it up. But, that little movement forward is probably the cause of the pluck on your first shot and your occassional miss to the right. Just a touch more back tension at the release would fix it.