The camera angle makes it a bit difficult to analyze. Also, since I can't watch YouTube videos frame by frame, I end up watching them over and over and over. But, in your video, you don't actually start your delivery until 2/3 of the way into the video which makes watching it over and over rather cumbersome. Anyway, it appear that...
...you might be striding to the throwing arm side.
...it takes you a while before you lock your eyes onto your target.
...your weight is a bit back at release which means your release point is not as close to the target as it could be.
BTW, I prefer camera angles directly from the side and from either the front or back.