Enjoyed the opening post, and have some ideas percolating in my mind at the moment. I think Touch should get the first post, and I try to get one in after her.
As far at the twins are concerned, my idea was very close in appearance, if not identical. It should be obvious they are closely related on sight, even if there are some differences in their dress, hairstyle or way of carrying themselves. It seems like they have some similar personality traits (both smooth talkers and at least a little manipulative), and similar traits that developoed differently based on their upbringing, with Espie being book smart, and Touch's character being street smart.