2 things i would focus on judging from this clip:
-do some mirror practice and clean up ur angles, do liquid, pause, ask urself is that the cleanest angle u can present with that movement, if its not, back up a few ticks and repeat that movement again till u get it right.
-as sifi said, isolation, but i'm more worried abut the arm isolation than anything else, your armflow needs alot of work at this point imo, try this exercise: doing all the liquid you do but with your torso completely still, dont turn or bend over, you can lower urself with ur legs tho. you can move ur shoulders but try to limit them from popping up or breaking the horizontal plane with ur back, this is what i do to get my arms used to moving on their own rather than with assistance from ur body, if ur using tension and doing it right u will feel it in ur chest/back/sideabs.