are you from London, all the major ones like Elite are in London..
My friend' a wannabe Model and she's gonig to the T4 Party @ Earls court because they're looking for the face of the future so if you cn grab a ticket it's gonig to be a wicked day.
yes i would definatly say thata portfolio helps because it shows the agency how well you can pose for photograps.Make sure you get high quality pictures taken