well, that would be a tough clip to use as ref since it's not locked down and his legs wander out of the frame.
The thing that strikes me as odd initially in your anim is how his left leg suddenly darts over around frame 22-24. I don't think that could happen without some opposite reaction motion in his hips. Inertia, momentum, physics and all that.
The sense I get from the reference clip is that his left leg made a smooth arc overhead.
Do the right arm IK, it's basically a leg in this situation.
Have I mentioned that's a great looking character?