Julien Macdonald is keen to have a curvy model on his catwalk.The fashion designer - who judges on UK TV show 'Britain and Ireland's Next Top Model' - says being on the panel has been a "real eye-opener" and he would be like to have bigger models representing him in the future, despite branding them a "joke" last year. He told LOOK magazine: "You can be real and still be sexy. Bigger girls can