Use photoshop to adjust people’s photos to reddish neutral colors

The author’s post-processing is very good. Although it has a grayish tone, if you control the lightness and darkness of the color and the detail processing of the characters a little, the effect will be very distinctive.
Original image

Final effect

1. Open the original image material, press Ctrl + Alt + ~ to bring up the highlight selection, press Ctrl + Shift + I to invert the selection, then create a curve adjustment layer and adjust each channel. The parameters and effects are as shown below.

2. Create an optional color adjustment layer, which is adjusted in relative mode. The parameters and effects are as shown below.

3. Press Ctrl + Alt + ~ to bring up the highlight selection, and then create an optional color adjustment layer. The parameters and effects are as shown below.

4. Create a new layer and press Ctrl + Alt + Shift + E to stamp the layer, then create a channel mixer adjustment layer and adjust the gray. The parameters and effects are as shown below.

5. Create a new layer, stamp the layer, and execute: Image Apply Image. Set the parameters as shown below. After confirmation, add a layer mask and use a black brush to erase the unnecessary parts.
6. Create a new layer, stamp the layer, sharpen the layer appropriately, and then slightly beautify the character’s mouth. Finally add some lens flare to complete the final effect.