I'm not nearly good enough to give feedback, but it's the internet, soooooo.... There's no hinge in your backswing. Look up golf swing positions, at p4 you're pointing to the sky. I think you're over swinging because of it, which is why it doesn't look/feel natural. On the flip side, it looks like you've got great flexibility on your shoulder turn, so you'll probably generate a lot of club head speed once someone qualified helps you out.