I'm new to your blog, but if you like angel fiction, have you read any of Sharon Shinn's "Samaria" novels? I thought she did a very good job of creating the society, the roles of the (genetically engineered) angels, and the structure of the colony planet. She is also amazingly talented at conveying music through mere written word (the angels' whole subsociety is based upon music). I disliked only the two books that took place later in the timeline (books two and three out of the five), where the people had developed technology; while a logical internal progression of the society, for me it undermined the whole purpose of the setup. It felt to me the same as if Middle Earth had become industrialized.