This tutorial introduces a relatively simple artistic coloring method. The general process: first use channel operation to bring out the strong highlight area of the picture, then fill the selection with your favorite color and change the layer blending mode, you can get a very good effect.
Original picture
Final effect 1
Final effect 2
1. Open the original image material and click on the channel panel. Select the red channel, execute: Image > Operation, and set the parameters as shown below. After confirmation, the Alpha 1 channel was obtained. Press Ctrl + Alt + 4 to bring up the selection.