A connected backswing is critical to consistent shots and creating that essential power coil in relation to your upper and lower body.
Ideally, an L-shaped position at the top of your backswing sets the club, the result of a good takeaway and turn. This promotes a wide arc, which is key to more distance.
My right elbow points down and creates an L shape.
A common tendency and typically the result of a fast and disconnected takeaway. You will not get good distance with this elbow action.
The space between the right side and elbow is too little, resulting in a V. This narrows your arc, restricts your movement, and adds no distance.