Good shoulder and hip rotation, decent power!
You look to be swinging across your body quite a bit on your forehand (sub-par footwork?), which results in your body leaning over to your left as you're following through.
Also, it seems like you're hitting more off the back foot, so I'd suggest keeping your weight more forward.
Consistent, if slightly stiff, backhand. Can't offer anything on the 2HBH, sorry!