I've said that Petra was a combination of Peter and Lucy's best traits. Summer, on the other hand, was a combination of Susan and Edmund's worst. This was how my friend liked it, as she loves playing villains/resistance characters. (She's the sweetest thing in real life, though!)
The Summer I have now, Reuben's younger sister instead of Petra's, hasn't changed terribly much. She's an ESTP, which is interesting, because I'm not an S, and I don't understand them terribly well (HOW CAN YOU NOT SEE ALL THE POSSIBILITIES IN THE UNIVERSE?????)
A lot of her character development was done my by friend, which I let her do, since this was the character she was going to play when it was to be a movie. I think the biggest change I've made since my friend left the project was changing her powers from just birds to Beasts in general, and that wasn't a change I made until very late in WPFP's publication process.
(Long story short, I decided to sort the Rizkan character's powers, which had previously been very hodge-podge. I may, after you read the book, share the original configuration with you guys.)
Summer is a bit of a typical teenager, a bit annoyed with the world, and a little obsessed with beauty. I believe I revealed in a Goodread's snippet that Reuben is part Native American, and, of course, as she's his younger sister, she is too. However, she's the one who actually looks it. Reuben and Robert take more after their mom's side of the family. In fact, many people give them a second glance when they find out they're related.
Until they smile, that is. All three of them have the same grin, revealing dimples a mile deep. (Key thing I look for when pinning her - dimples)
Summer does dye her hair, I've figured out, so if you see her in blonde on my pinterest board, that's what happened. In truth, she's a dark brunette.
I need to get to work. 'Twas fun talking. Hopefully I'll be able to get the first Character Q&A post up this afternoon, and the second one up tomorrow. The few answers I've eked out of Clara and Andrew have been interesting thus far.