Orthographic views (elevation and section, respectively) drawn 22 July 2005, Alaska Museum of Natural History. (Both from 7.5"x11" sketchbook, carmine red Sanford pencils, all images done, apparently, from a lousy mount. I didn't know at the time, so I don't recommend anyone use these for anything.)
More Probactrosaurus mongoliensis:
Carminy red Sanford color pencil on 14"x17" sketchbook paper.