Can the organiser of an art show subsequently decide to remove a work from the show on the grounds t
Yes, and in the absence of a written agreement between you and the organiser, or in the absence of a suitable clause in a written agreement, the courts will seek to resolve the matter by implying the terms and conditions which the parties would have reasonably contemplated had they addressed their minds to this point at the time of entering into the agreement.
It would be reasonable for the parties to agree that the exhibition organiser could refuse to show any work, which was in their judgment inappropriate to be shown in their premises.