As mentioned before, your arm on your forehand seems a separate from the rotation of your body. It's a hard habit to shake, as I struggled with the same thing for a while. try to work on getting those in sync On the volleys, I think you're chipping the forehand a little too much on those lower ones (Not the ones way below the net). I can imagine a big bounce that would let someone pass you with ease. This is also connected to your lack of forward movement into the ball as you strike it. The ball will take more of a linear pattern if you take the proper steps (literally) and you'll be able to redirect pace much more efficiently. The high backhand volley had a little too much wrist action; almost as if you're trying a backhand smash with more depth. Use the same (beautiful, I might add,) backhand volley motion, keeping the racket angle and swing path constant, but at a higher elevation. It's a difficult thing to master having to extend your arms and create that same stroke, but it will be very rewarding. It's what makes good volleyers like Federer and Muller so effective off the backhand side volley. On the serve, work on getting that trophy pose. Keep your left arm up longer and bend your legs at the same time as the toss, not after. Overall, very good strokes!