Q: Is it OK to submit work that has been shown before?

We do not exhibit work that has been shown in the gallery in the past (with the exception of Pushpin).  And  for Portfolio it is different.  Portfolio is about a body of work. If there was one piece in a ten image submission that had been shown before, no problem. Two pieces - maybe. But if more than two of the pieces out of ten submitted had been shown, we would not accept the entry. If more than two out of twenty had been shown before, we would steer the juror away from choosing more than two that had been shown but would still accept the entry.