A few nice canvas photo images I found:
Canvas
Image by Scott Beale
photo by Scott Beale / Laughing Squid
This photo is licensed under a Creative Commons license. If you use this photo within the terms of the license or make special arrangements to use the photo, please list the photo credit as "Scott Beale / Laughing Squid" and link the credit to laughingsquid.com.
photo on canvas
Image by alecani
Created with www.dumpr.net - fun with your photos