3 sentences

1. 请在个人资料里上传一张头像。

   qǐng zài gè​rén zī​liào lǐ shàng​chuán yī zhāng tóu​xiàng.

   Please upload a profile picture in your personal profile.

   Source: Dong Chinese Dictionary

2. 她刚刚换了一个新的微信头像。

   tā gāng​gang huàn le yī gè xīn de Wēi​xìn tóu​xiàng.

   She just changed to a new WeChat profile picture.

   Source: Dong Chinese Dictionary

3. 这枚硬币的正面上印有伟人的头像。

   zhè méi yìng​bì de zhèng​miàn shàng yìn​yǒu wěi​rén de tóu​xiàng.

   The front of this coin bears the portrait of a great man.

   Source: Dong Chinese Dictionary