This portrait, titled First Fathers, is a Jeff Zaffino design. The pattern can be purchased here. It is 11x17" as ordered. I scanned it on the computer and enlarged it to 18x22". I made the frames for this portrait out of white oak.
If anyone would like to know how I enlarge patterns, post in the comments and I will post and entry on how I do it. There are many way to accomplish this. As a matter of fact, most people reading this probably know of better ways than I do get it done. I use a vector based program called Inkscape. If there is interest in it though, I would be glad to point people in the right direction for instructional videos on how to enlarge patterns using Inkscape.