1. Drag the material into the background image.

2. Character decolorization: click on the image → adjustment → black and white.

3. Drag the background image onto it to create a clipping mask (press

Hold down the alt key and click)

4. Add a mask and select the brush tool.

The foreground color is black, adjust the hardness to 0, and hold down alt.

Key to start painting, and then press alt key to copy a layer.

5. Delete the mask, and then adjust the opacity of light and shade.