ok so i go off of what i really love to use but I also just go off the least likely colors to be together like a sort of reverse color theory?? So like orange and green might SOUND gross but could be really good if you mix their middle hues together. For example I used pink because thats just my personas skin, but for sunlight and lighting I use some blue because blue makes a lighter purple and pink in the skin. because I ended up using a light blue I use a darker blue as like a shadow situation, and then I used orange as a highlight in the skintone because since I'm using pink, instead of using straight up yellow since it's too bright, i go one darker so it's still bright but not too bright and reflects on the skin easier.