To create a Douyin avatar picture, you can follow the following steps:

1. Choose a suitable photo: Choose a photo you like as the avatar picture. This can be a photo of yourself, a favorite celebrity, or another image.

2. Crop and adjust the photo: Use image editing software or a photo editing application on your phone to crop the photo to a suitable avatar size. The avatar size is square, and it is recommended to crop the photo to a suitable size centered on the face.

3. Add filters or effects (optional): According to personal preferences, you can add filters to your avatar picture, adjust hue, brightness, contrast, etc. to increase visual effects and personalization.

4. Export and save: After completing editing, export the avatar picture as an image file and save it to your device. Make sure the saved file format and size meet the Douyin avatar requirements.

5. Update the Douyin avatar: Open the Douyin application, enter the profile page, and find the avatar setting option. Select an avatar image from an album or file and upload the avatar image you just created.