Posting to Facebook with attached images?

Question

Facebook

Hello everyone, I need to set up a facebook post via the API on the user's wall with large image attachments. But I did not find the optimal solution.
Attempt #1: Using the method /me/feed/?message=Messages&picture={URL_IMAGE}&access_token=…
But the picture is small and not clickable.
Attempt #2: Using the /photos/?url={PICTURE_URL}&caption=Messages&access_token=… method
Everything is fine here, as long as one photo is sent. If you send two or more, they stick together in the news feed.
It would be possible to use Batch-request with the attachment parameter, but what fields to use, how to use it in general, and will this method work?