Okay! First, for playing such a short period of time, this is an impressive handicap! This is great speed with the club. Since I do not have a down the line view I will talk about the front view you have provided. Good news id there are some really good things happening. First is the speed, it is fantastic. Secondly, your lower body action, although not perfect, is quite impressive. And third, the swing is identical for the Driver and irons.
Now, lets make it better! First, the stance is too wide causing a lateral movement to the left side of your body (a sway) further causing a lift in the arms that results in the swing looking too long at the top. Your neck bone is closer to the target at the top than your tail bone (I'll get back to that in a second) causing a reverse pivot. From there, your great lower body action saves the swing. What I mean by that is your hip turn and drive to your right foot causes your spine angle to change to get your tail bone back into postion for a solid hit. My guess is that doesn't happen on a consistent or consistent enough basis.
Here's what I want you to focus on: 1) Set-up. Get your ankle bones more under your hip bones. From there, you should be bent over at your lower hips (where your legs sit into your hip joint) and you should get the feeling your thighs are rotated inwards as your shins are rotated outwards. This is a more dynamic, static position that allows better movement in your back swing, Be sure your spine is slightly tilted toward your left with yout tail bone slightly closer to the target than your neck bone; 2) Be sure to keep your tail bone closer to the target than your neck bone in your backswing. You will do this by feeling your takeaway is initiated with a rotation of your stomach and back muscles and let your arms follow. When you maintain the address position (tail bone closer to the target than your neck bone) the club will not swing too far; and 3) be sure as you are moving forward, your downswing motion in your lower body is as good as it currently is with a more concentrated turn to the right.
And here;'s your drill: get in that set-up position and take swings taht go rib cage high on your back swing to rib cage high in your follow through. Be sure this is done with your body and arms moving in conjuction. You will start to feel a much more solid impact. Do 30-40 of these then move to a shoulder to shoulder swing increasing the length of the backswing with increased turn and coil. That is the feel you will start to feel in your full swing.
Good luck and I hope you let me know that your handicap drops to at worst a 9!