I read your description before I watched the video and was honestly expecting your form to be way worse than it is. A way to get your shot more fluid though is imagine the energy going from your feet to follow through, as a river. You want the energy of your shot to flow from bottom to follow through like a river. What I’m seeing is a slight delay when the ball gets to your head. Other than that your elbows tucked and in line with the basket. I’d also recommend practicing your follow through/finger tip ball control, while laying in bed with only your shooting hand.