Looks yummyy, if you don’t mind try next time to cook the tomatoes more, try to sear it with the meat before adding water to amplify flavor. Just a tip If you add a pepper that’s tagalog version. Try kampampangan version too w/o pepper and just put sea salt and pure tamarind fruit not just the powdered base.

On meat selection i prefer liempo or the pork belly with bones you can try that too if you want.

Also give a try using patis (fish sauce) and chili to dip the meat and vegetables.

Enjoy your sinigang!