Album art size bigger than 200x200

Is there any way to request the album art size? I keep getting a very small image as a respone.

Thank you.

{ title: 'Rap God', artist: 'Eminem', duration: 369.18966, album: 'The Marshall Mathers LP2', release_image: 'http://cdn.7static.com/static/img/sleeveart/00/030/164/0003016446_200.jpg'... }