If you watch your video, you'll notice that the angle formed by your upper arm, forearm and wrist stays pretty much constant throughout your bow stroke.  The only way that this can be accomplished is by moving the upper arm back and forth at the shoulder. When you do this, it causes the bow angle to change as it crosses the strings. That leads to inconsistent pressure, angle of attack and contact point between the bridge and the fingerboard as the tip of the bow arcs across the strings. I know it's hard not to do this,  but it should to be corrected before it becomes a habit. 

Here's what I (and feel free to ignore anything I say, almost everyone does) would suggest.  Stand at about a 45 degree angle next to a wall, with your violin in it's normal position. Place your right shoulder, upper arm, and elbow and a bit of your right shoulder blade lightly in contact with the wall.  Then, using the upper 2/3 of the bow, move the bow up and down across the strings (play a song if you like) as far as you can (from the tip towards the frog and back), while making sure that your elbow and arm never lose contact with the wall.  You'll notice that the only way that you can do this is by moving your forearm by bending at the elbow, not by moving your arm from the shoulder. This will let you experience what correct bowing should feel like. Practice doing this frequently and I think you'll be happy with the results.  If you don't feel like it helps, you haven't wasted but 5 minutes.