Here's the link to the artist: John Sorci. Maybe if you fill out that contact form at the bottom of the page he can arrange for a print? Looks like this was also included in the book, <em>The Art of Up</em>
Popular alternatives to
The Art of Up (Disney Pixar...
The Animator's Survival Kit: A Manual of Methods, Principles and Formulas for Classical, Computer, Games, Stop Motion and Internet Animators
The Animator's Survival Kit, Expanded Edition: A Manual of Methods, Principles and Formulas for Classical, Computer, Games, Stop Motion and Internet Animators