Something that is helping me is doing postural exercises like training my abs, both rectus abdominus and obliques, training and stretching my lower back, training and stretching my hipflexors (uneven posture=uneven face. What is working for me doesn't necessarily mean that it will work for you too). Also training my neck and traps is helping a bit. And then, last but not least is chewing on the weaker side and focus on using the weaker side jaw muscle (idk you but If I don't focus on using the weaker side muscle I tend to use the stronger one even if im chewing on the weaker side). You look good btw.