How can ps make this kind of self-cultivation curve effect, that is, the one on both sides of the waist? Please explain in detail, the novice doesn't quite understand.
Take the effect of your drawing as an example: to create a new layer, first draw a curve path with the pen tool, select the path with a white brush (3~5px), select the layer in the layer panel, use external light (rose red) in the layer blending mode, properly adjust other size values to achieve the desired effect, and finally adjust the transparency with an eraser, and slightly treat the two ends of the curve.