The biggest and best thing to learn from that reference is that the paper is sold as paper in its folds and edges! The curled, iconic paper corner in the top right is no accident, and the crinkles, wrinkles and seams heading into Kirby's mouth do well to show you how thick the paper is, how firm it is and other such papery attributes.
That said, you're not far off now! The idea's already pretty clear.