How did you make it? If you sewed 9-patches and put them together, I would unsew the top back into 9-patches, then re-assemble using white sashing strips between the 9-patches, possibly putting the patches on point as well. If you sewed long strips together, I would unsew back into strips, cut the strips into a variety of lengths, and re-assemble with white sashing strips in a modern quilt type of configuration. For me, the work of unsewing would be worth it as white sashing would give the quilt a completely different look. The white would provide the eyes with relief, and would also frame all of the wonderful colors.
Here is an example of a 9-patch with sashing:
http://www.sewinspiredblog.com/2010/...quilt-top.html
And here are some examples of different ways to use colored strips with sashing:
https://au.pinterest.com/explore/strip-quilts/
Another option would be to cut the top into 6 pieces (right through the middle of some of the strips), insert sashing, then border with the sashing material.
The sashing wouldn't have to be white, either. Gray would also give it a very nice look.