So . . . I was trying to create colors to match some peaches and nectarines I had. I felt like I had maybe matched one dark color from the nectarines, but nothing else was very close! I did have eight circular test patches, though. So I cross-pollinated all the samples, cut them into peach shapes, added some peachy details, and gessoed them into a collage. First take below:

second version below:

last version below (for now):