If you have any hummingbird fabric left, I would recommend one more row across the side of the quilt that is on the couch seat so it is the same as the side across the back of the couch. (I hope this makes sense.)
Next, add a tan border all the way around the quilt; and then add a wider dark border that compliments the hummingbird fabric.
Or, add a tan border all the way around the quilt - followed by a green border - followed by tan - followed by blue - followed by tan, using the same dimensions as the colors in the quilt. Then finish with a black binding. (You could omit the last tan border, if it makes the quilt too large.)
Hope I haven't totally confused you. :?