Open the original image and copy one layer.
First, open the original image, copy one layer, select Filter-Blur-Gaussian Blur, and adjust the value as needed.
Reduce the saturation and change the layer mode.
Then click Image-Adjust-Hue/Saturation to reduce saturation, and the layer mode is changed to "Positive Overlay".
Curve adjustment layer, easy to adjust the light and shade.
Create a curve adjustment layer to easily adjust the brightness of the image.
Gradient tool, soft light mode
Create a new layer, select the gradient tool, find your favorite gradient effect in the drop-down menu, pull the gradient from the upper left corner to the lower right corner, and change the layer mode to "soft light".
Starlight embellishment, superposition mode
Finally, create a new layer, decorate some starlight with a white brush, and set the layer mode to "Overlay". You're done!