What awesome suggestions. Combining a thought from several of them, I think I have a direction for what to go next. I'm going to add another row of four patches to the top and bottom, and add a 2" border all the way around in the solid brown. That will give me a much needed additional 12" on the length.
Trees blocks had not even occurred to me, but I think it will be perfect! I found this picture as inspiration. [ATTACH=CONFIG]577038[/ATTACH]
I'd love to work with a dark wolf color, but I don't have any, and I already broke my fabric diet on this one to buy the dark brown. I think I have some coffee-dyed muslin that should work nicely as the background. I think the Bear Paw Blocks would be great as corner blocks.
Once I have that done, I'll see how it looks, and decide if it needs more.
Thank you all for sparking my creativity!