Fetch image like in Facebook

Hi,
can you adjust your plugin as it could work better, link Facebook posts?
Because of when I try to fetch the post. Firstly, the image is fetching badly – it is either too small, either it fetch some other images from the page. Event when I scroll though fetched images and didn’t find what I need.

So, pls: Facebook-like posts with big images (just use Facebook recommendations about sizes).

https://wordpress.org/plugins/buddypress-links/