I don't think there's anything wrong with sending something from an actual job. My clients love seeing what I've done for other people. Sure, some may be jealous if their work is not as nice as the other firm's... but they'll remember that you shoot for the architects they look up to and they'll want to use you.
I like to send out gift prints to clients at year's end, and those are personal work that have nothing to do with architecture, but I have no issues sending architectural images as well.
By the way, I like the top image... more impactful.