In 1743–1745 Hogarth painted the six pictures of "Marriage à-la-mode" (National Gallery, London), a pointed skewering of upper class 18th century society. This moralistic warning shows the miserable tragedy of an ill-considered marriage for money. This is regarded by many as his finest project and may be among his best planned story serials. Marital ethics were the topic of much debate in 18th century Britain. Marriages of convenience, and their unhappiness, came in for particular criticism.