The recommended size of the AliExpress store avatar is 200*200 pixels. This size is suitable for display on the computer and can maintain clarity on the mobile phone. Choosing the right image for cropping and resizing can ensure that the store avatar can attract customers' attention and enhance the store's image on the AliExpress platform.

In addition, the content of the store avatar should also be concise and clear, highlighting the store's characteristics and in line with the product positioning. In short, the size and content of the store avatar need to be carefully considered to ensure that the store image and brand image are well displayed on the AliExpress platform.