Diane:
You are nothing but a delight. How completely cool of you to bounce up and want to be arty with my little idea.
I'd suggest: start a thread, ask people's permissions to either use their posted pictures or solicit other pictures. Get quotes from people, and some idea of how they want to be identified (by initials, first name only, full name, first name last initial or nickname) and slap it all together.
Maybe the Element building people can look at it in their lunchroom or something and feel like their work is appreciated. It's always good to thank people. It just feels good to do, and sometimes it can really make someone's day.