1. Open the original image and copy one layer
2. Grind the skin according to your own method, and then perform image calculation, as follows
3. Go to the channel panel and select (Ctrl+A) the calculated channel (ALPHA1 channel), Ctrl+C to copy, return to the layer panel, create a new layer, Ctrl+V to paste the channel, and change the opacity. as follows:
4. Adjust color balance: shadow, the values are as follows:
Middle tone:
Highlights: