Just noticed today that Google has cleaned up the photos section of Google+. No more confusion between Highlights and a Photo Stream. The show more images button has changed and the now everywhere present "card" background appear only on hover. The interface of the single album view has also been optimized. Now there are simple buttons for switching between Highlights and "all Photos" - this has been quite hidden before - and the properties are easier to access. If you click on the name for example a modal window shows up.
It shows that some of the sleeker design decisions have not been accepted well it seems. A reminder to us UX Designer to continue to improve and test our designs.