There are multiple lenses to steemit now. They can display things differently so it's with bearing in mind and trying out your posts on different platforms. A few to check out
busy.org
This displays posts and thumbnail posts in a slightly different format than steemit.comautosteem
This app has a browser included which focuses on displaying images in a storyboard format.esteem
This is a mobile app and as mobile can display things differently it's worth checking out just in case.twitter / Facebook
If your link is posted to these sites it's worth checking out how the link displays, and what photo appears in the link.