I was browsing around the Google+ after the update for new profiles and found some nice uses of photos and of course, Photoshop in some cases. Good & useful links at the end of this post.
Enjoy and perhaps get some ideas for your own profile:
If you don't have any good photos yourself, take a look at this:
Here is a very kind offer from +Trey Ratcliff
An album with 1000 of his photos, free to use! (Creative Commons non-commercial)
Here are images from me, also free to use for non-commercial purposes
Looking for a collage of your photos to screenshot and crop? Change your own Google+ ID in the URL. You may also edit the width: Now 200. Just change the number there at the end of the URL.
This is what Google+ and the Circleverse is all about. Sharing.