Good news and bad news. The good news is I know what you're doing because I do it myself. The bad news is I've been trying to change it for years and I'm still not there yet.
Here's the short answer. The hands do three things in the backswing -- they go back, up and in. Yours (and mine) go back and in plenty, but they don't ascend (go up) fast enough. As a result, the lead arm (your right) gets sucked across the chest too much, creating that "flat" look that you've already noted.
At this point I have to ask, what are you doing with that finger? Is it busted and can't wrap around the grip? Not really relevant, but makes me think of this.
Anyway, what happens in play is that the hands then try and find the plane. And because they go so much under on the way back, they tend to compensate and get over on the way down. Based on the exit, your path looks well right here -- which is pulls and cuts all day.
Feels for you. Left hand stays more on top of the grip, wrists cock faster , club head stays outside hands. Rickie Fowler!