I agree. For a year of golf, there's lots of great things in that swing, in my amateur's opinion.
Two things I think you may need to improve on (and the moderators of this forum have LOTS of things to say about these two swing "keys," so you have come to the right place for better advice than I can give, but I think they'd agree) are that your head seems to shift back laterally a great deal on the backswing. There's a lot of information on this site about why excessive head movement is detrimental to a golf swing, and it's something most pros have control over.
Second, I think your weight could be more forward at impact - that is, shifted to the left side. It's not like you are totally hanging back on your back (right) leg, but I would wager that not much more than 60% of your weight has shifted to your left side at impact whereas pros are generally between 80 and 90% there. You can do some drills to really exaggerate the feeling of getting your weight forward at impact. It feels awkward at first, but it's a huge key.
As to your flexibility comment - I have been told by @iacas that it probably isn't an issue for me and I'm close to 300 pounds right now. I know that dropping 80 pounds and working on flexibility training will certainly help my swing (congratulations to you for losing the weight, BTW!), but you can have an excellent swing if other things are corrected. Look at videos of Craig Stadler right now. He's in his late 50s, I believe, and carries a lot of weight, yet can still play some serious golf. His backswing barely goes past PERPENDICULAR before he's done, but he still hits great shots.