I totally agree about adding abit of flavor text for the spells as I do it alot with Ayden, singing for healing spells, the choir for Deific Vengence, and on and on. Definately for her, it should be flavored with aspects of the moon, her creatures could be solid, but tinted with a silvery light, her hands could glow with a pale light for her healing spells, and so on like that.
However, as a word of caution, there is no guarentee that we will get to rest down here, so marshall your spells wisely. In retrospect, if I would have known how easily the creature was going to fall to our combined strikes, I would have held off on the divine favor spell, however in game, it fit Ayden's mood at the time, so it is truly a case of the character taking over, vice the writer.