You could do a wood grain look in the brown stall parts, micro stipple in the black around the horses, echo the red triangles inside them, do some cloud shapes in the blue triangles and do a swirl of some sort in the burgandy boarder, or maybe even a geometrical triangle design to go with the triangle sky and barn roof.
I think this would be really fun to quilt! But then again the quilting is my favorite part. I know you aren't as crazy about it. :)