Just seen this thread ......... Here are a few of mine to keep the thread going ...... Different subject matter and situations - the one common element is that they are all treated from a single exposure rather than the more common 3 or 5 exposures. To me it gives a more subtle toning and when masked can be used to good effect.
http://flic.kr/p/9gqpAk
http://flic.kr/p/9gqpAk