Krista, I assumed you were frame quilting
Keep in mind that many longarm quilters who do the "modern" aesthetic don't use rulers with their straight line quilting. They just free hand the lines. Modern is usually dense, dense, dense. So any wobbles or irregularities are hidden in the denseness of the quilting. Angela Walters "tiling" technique where she breaks all the negative space into small compartments and then does freeform, free hand fills in each "tile" may work quite nicely on this piece. Rather than making your "tiles" squares or rectangles you could incorporate diamonds.
I also think Kaylee Porters "graffiti" style quilting would be a very cool and different way to step outside your comfort box with this quilt.
https://www.karleeporter.com/2015/08...-crash-course/