Great start already!
2 things I notice:
On your backswing, you have a lot of lower body movement, and your hips slide back with the club instead of turning, which can rapidly decrease all of your momentum and power. Try to keep your lower body still and then when need be, to turn your hips instead of dragging them backwards.
On your downswing, you seem to shift all of your weight onto the back of your front foot, which I feel can lead to restriction from making pure contact with the ball, and maybe in some cases, topping. You do not finish on the back of your front foot, which is good, but you seem to do it very quickly, which I think can make your upper body pull up the club before you make contact with the ball.
I was taught by Tom (AKA Avid Golfer on this forum) to try and keep all of your weight on the tips of your feet throughout your whole swing. It feels un-comfortable at first, but It works.
You've got something good going here, keep it up, and good luck with your lessons.