PS tutorial to create soft style tones

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Original picture
final renderings

1. Execute the channel mixer, mode: color, transparency 70%. Set as shown below:

2. Hue saturation, linear deepening mode, 80% mask as shown:

The values ​​are as shown in the figure:

3. Merging, grinding, and curve darkening.

4. If you go to LAB now, execute Apply Image, Channel A, Mode Linear Light, Transparency. 70%--100%, and the effect will be like this.