One of my favorite places to find inspiration when designing vintage clothing is from Dover Publications. Above are three of the resource books I have from them, one of which is a paper doll book! (the one on the right). Dover easily has hundreds of paper doll books and other books, including books of old photographs, that are perfect for jump-starting the creative juices.
I based the 'basic' Edwardian dress on several of the styles from 'Childrens Fashions 1860-1912.' The pattern is now available here:
Included are instructions for both the bretelles (fancy shoulder straps) and a deep bodice collar. Two sleeve variations, and two different pattern stitches for the skirt. The basic bodice is simply the side-to-side bodice.
So please, have fun making these outfits, and coming up with variations of your own!