The first method: tick off the selection and use the deformation tool to deform, but there is a problem, which may not look real.
The second way: there is another stupid way, tick off the constituency and cut off all unnecessary parts, such as fat arm roots, lifebuoy-like meat on the waist and protruding cheeks. The steps are as follows.
1. (well, it's been a long time, let's start. ) first, use a pen to achieve the ideal appearance. Of course, don't tick the unwanted parts.
2. Use shift+ctrl+I to reverse select the dotted line and "delete" the unnecessary part, and then start thinning (it's time to test your skills ~ ~ ~ be serious ~ ~).
3. Invert the dotted line shift+ctrl+I to feather twice (so that we will be more natural in the complementary color later).
4. Draw a face with the color of the face and an arm with the color of the arm ...? Hmm (expressing hesitation, etc.) ... they all look flesh-colored, but they are a little different. In order to be accurate, you can use the straw tool (use the straw in the PS toolbar, not the straw that has drunk yogurt ~ ~). If it is to add color to clothes, suck the color of clothes (good boy, I don't need to repeat it ~ ~).
5. In this way, we basically finished the complementary color, and then continued to refine it (I'm tired of typing ~ ~). Of course, if I am lazy and don't want to draw, I can make do with it.
6. In order to see the modification effect more clearly, you can hide the dotted line ctrl+H first, and don't press D. We also need this option. You can choose all kinds of tools you like (unfortunately, there is no hammer, shovel head and knife in PS, otherwise we can use carpenters instead). You can spray, brush, poke, paint and black with a pen. These tools are very suitable for refinement.
7. Give it a try. If you can't teach you a more lazy way, just post it. There are many enthusiastic experts here, please fix this picture ~ ~ ~