After doing all the usual steps to get google Authorship to work, and it not working for a good while.. I decided to change my profile picture. The picture is a clear headshot, and this is one of the required steps to getting the authorship to work. It worked very soon after changing the image, so I’m pretty sure this solved it.
See the usual steps here. And then make sure your profile picture is a clear front facing mugshot. If this helped, let me know in the comments below.