Quickly bring out non-mainstream colors in photos

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This tutorial mainly introduces the modulation method of blue-style non-mainstream color. The main idea is: use a filter to smooth the skin, then adjust the curve to select the color channel that needs to be changed, and finally add some decorative effects to create your favorite effect.
Original picture

final effect

1. Open the original image and press Ctrl + J to make a copy.
2. Simple skin grinding
3. Create a new adjustment layer and select the curve, adjust the RGB channel and blue channel parameter settings as shown below
4. Merge layers downwards
5. Execute the menu: Filter > Render > Lens Flare. The one with 105 mm, 180%. Then change the mode to "Linear Burn"
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6. Go to: Image > Adjustments > Photo Filter Color Set to: #3af8f6, Intensity 30%

7. Press Ctrl + L to adjust the color level, and set the parameters as shown below to select the blue channel.
8. Execute: Filter>Blur>Special blur parameter even as shown in the lower left of the picture below
9. Finally press Ctrl + U to adjust the hue/saturation parameter settings as shown in the lower right picture below. Complete the final effect.