I almost considered leaving the colored spaces unquilted to make them pop, but that's really not my style. So instead, I opted for some simple geometric lines with echoes. In all the little nooks and crannies around the colored spaces, I didn't have a lot of room, so I did what works best for small tight areas ... pebbles! It really mashed the area down, and helped to enhance the colored arrows with the contrast in quilting density.
My favorite part of every quilt to quilt is almost always the negative space. In this quilt, there really wasn't a lot of it. I did some stacking swirls that looked like they were growing out of the pebbles, and added some straight lines in the border area for some contrast.
I still occasionally overthink my quilting design, but in general it's been getting much easier for me to land a concept and go with it, because I realize it just has to look good, it doesn't have to be the most-amazing-design-ever. And finished is better than perfect, anyway!