It may be that you have set a beautification function in the settings. Generally, there are two main reasons for this problem.
1. The skin beautification parameters were adjusted too high when the Meme function was turned on. The solution is to adjust the skin beautification parameters appropriately, or turn off the Meme function and take pictures again.
2. The front cameras of some models use barefoot lenses, causing some distortion in the four corners of the photo. In this way, when taking photos, try to place the person or object being photographed in the middle of the screen.
If there is no solution, you can go to Huawei after-sales center for testing. Remember to prepare the data in advance. Hope it helps.