In the backswing the club and arms move back and up in context. If there is any more obvious influence then gravity I don’t know it! The down part of the swing could be the simplest of all the swing movements. Play with the fall or lengthening of the arms as you rotate and extend into your follow through!
In response to:
What’s the best way to get a golfer to hit down on the ball instead of trying to ‘scoop’ it?