This stuff is the ultimate comfort food, although I like the Chairman Mao recipe that is a lot of why he was so fat. Unfortunately pork belly isn't easy to get before they turn it into bacon, and I can only get it if I'm lucky enough to get to the local butcher when they haven't cut it up yet, or at another place further away where they often have it frozen.
I suppose I could ask them to reserve some and call me, but I haven't.
What you did seems really similar, minus star anise (which really helps). Also the red-cooked pork recipe Mao liked has the pork cubed, so each cube has a bit of the meat with a pad of fat at the bottom.
This is similar to the recipe I've used in the past:
https://thewoksoflife.com/red-braised-pork-belly-mao/
Cinnamon, star anise, dried chili peppers, and bay leaves really bring this dish together.
One major difference in the dish as I've made it in the past is not cooking off the liquid with the meat in it, but waiting until the meat gets tender, then removing it and the sauce, deglazing the pan with Shaoxing cooking wine (both immediately after searing the meat and after the meat is finished), then reducing the sauce on medium, adding the meat back when it's done and bringing it back up to temperature before serving over rice.
This may be a little precious and can probably be skipped.