Here are a few designed tiles that would be presented to the user while browsing Tumblr's pictures. That was done with Sketch and Pixelmator.
The top right tile is a representation of browsing pictures from a specific Tumblr blog. The top right tile is shows a title without the metadata. The bottom left tile is an empty tile shown when the pictures are not loaded yet. And the bottom right tile is showing the metadata overlay.
How do you like this design? Post your comment to answer.
I'm constantly working on new versions of the application UI elements.