lol you will learn I see you are doing fine yourself just try to be more fluent and dont extend glutes and contract legs. it looks stupid try relaxing your knees instead of extending when kicking...
Ah you have a habit that I have eswell.
You are moving your chest side to side it ruins your flow and makes your movements look stiff.
Try to only use chest when you are swinging with your pecs eswell.
Hope this helped.