如何在模板中提取与用户关联的属性？

I am trying to get an image associated with a user to display properly. I need help determining what should be included in the template. Specifically, I think the code in the template "{{review.user__image}} is incorrect. Based on a particular review and the user that has written that review, how do I pull in the image associated with the user? I am trying to get an image associated with a u