The left image is the replacement you'll have if you delete your Google+ album.
I have already seen two blogs that had all their pictures removed so I decided to search the reason to protect myself.
When I visited my profile at Google+ I had the surprise of finding all my blog's pictures, including those who are in draft, in an album.
I felt a little invaded cause I didn't add them but knowing that all we do over the internet is not private I recovered from the shock without even needing to go to a therapist.
I thought about deleting but... I don't use Google+ because I have a Facebook account and, oh! please!, start building it up all over again? I closed the window after setting them not to be visible for others.
The important is: DON'T DELETE PICTURES AT GOOGLE+ because they will be deleted from your blog permanently.
There is a good post about it at Blogger Sentral.
