This tutorial introduces how to color characters and backgrounds. The author's color grading techniques tend to use selections and curves to adjust. First, use curves to adjust the main color as a whole. Then use a selection to select each detailed part and create a Curves adjustment layer to adjust the color. Some adjustments in the tutorial do not have specific values, so you need to debug them yourself. There are many ways to color, so try other methods.
Original picture
final effect
1. Create a curve adjustment layer, name it skin tone, and then adjust the red and blue channels. The parameters and effects are as shown below.
2. Use a pen or a set of locks to circle the blush area and feather it. In the future, the selected area will be feathered, so skip it. It will not work without feathering.
3. Add a Curves adjustment layer and name it Blush Color Adjustment. Select red and adjust it a little bit, but not too much.
4. Then use the brush in the mask to adjust the complexion to make it look bloody and natural. Of course, don’t miss the details, such as legs and hands.
5. In the same way, circle the lips, add a curve adjustment layer of the lips, set the parameters as shown below, and adjust it to purple.
6. Use the lasso tool to circle the eyebrows and eyes.
7. Create a hue/saturation adjustment layer and set the parameters as shown below.