I think this one is about three feet long. He doesn't have feet, but has flippers. I don't see any external ears. Here is another seal behind him just looking at the sea. I think the seal already had dinner even though his mouth is wide open.
Females are larger than males.
The leopard seal is the largest of the four Antarctic seal species. Pups are born measuring 1.5-1.6m in length and weighing about 35kg. They are usually found on the edges of the Antarctic pack ice, but individuals are also present year-round and seasonally on some subantarctic islands. Leopard seals are regular visitors to Australia and New Zealand, and wandering seals have also been found on the southern coasts of South America and South Africa. The most northerly sighting of the species is from the Cook Islands.