Leanne Mullen is a painter and sculptor who trained in NCAD and Belfast, MA. This body of work reflects on the building itself as a thrLeanne Mullen is a painter and sculptor who trained in NCAD and Belfast, MA. This body of work reflects on the building itself as a threshold where people spent time in the cells and changes occurred in their lives as a result. We have our own thresholds to cross.eshold where people spent time in the cells and changes occurred in their lives as a result. We have our own thresholds to cross.