Better posture is literally what mewing is. I think the difference in skin/hairtone you notice is just lighting, based on the background, neither of those are the point of the picture though. There's a clear difference in the angle of her jaw.>>9570
mewing saved my life, too. Haven't started using the chewing gum yet, but have been maintiaing proper posture, nose breathing, and eating more hard fruits and veggies.