Google Ads has added the ability for your to allow user-generated images in your product reviews. Google said "You can now include review images in your product review feeds, allowing customers to visually connect with what you sell through pictures of previous customers wearing or using your products."
There is a new schema you can add to your product feeds for reviewer_images. You also need to be part of the Product Ratings program which you can apply over here.
Here is what it can look like:
This experience is currently available on mobile in the US, with plans to expand across more Google properties and countries over the coming months, Google said.
Forum discussion at Google Ads Help.