Ya can pick up a print of it here:
http://www.ltdartgallery.com/product/ya-gotta-believe-by-wp-van-overbruggen-giclee-print-11-x-18
Additional resolutions
http://www.slid3.com/3D/Parappa_2560.jpg
http://www.slid3.com/3D/Parappa_1920.jpg
http://www.slid3.com/3D/Parappa_1280.jpg