Um, mine was a bit different I guess, it was more of a report than an essay. I guess with a proper essay you'd have the equivalent of chapters in it each explaining different bits (mini essays? each covering a different angle/subject?), along with an intro/abstract and a conclusion type end. Thats a guess though.. wouldn't worry about it, its surprising how much work you can do 24 hours before the deadline (even though you've been awake 2 days already). Feel sorry for everyone who has to do them this year, good luck all I don't envy you!