What is the author's style in Waterlily by Ella Cara Deloria?

The story is told mainly from the perspective of the main character, Waterlily, but one also gets a glimpse into how some of the other family members are feeling at times also. For instance, when Sacred Horse and Waterlily are first married, the reader would not understand the concern that Sacred Horse had for his new wife's happiness and how she feels about being with him if not for this point of view. Thanks to the omniscient point of view, the reader understands that Sacred Horse truly cares for Waterlily and wants her to be happy. Even when Sacred Horse talks to his friend about the situation, this point of view helps the reader see that Sacred Horse is wondering if he has made a mistake by taking Waterlily away from all of her family.