I was satisfied with her characterizations, though I think the male protagonist, Akiva, needs further development. Since the author utilized a dual perspective, she could have easily developed Akiva more fully. But she didn't and I'm really not sure why. That is the power of that perspective. However, she does a fantastic job bringing secondary characters to life. I was also very pleased with the complexity of motivations. The opposing forces are not solely good or evil, but a fine shade of gray, multifaceted. The premise is imaginative and the possibilities are endless.