Interesting CS. Only complaints i can see so far are:
1) Please only include in the Allies list characters that you plan to play. Batman's kinda a big one, so him serving as a tertiary character in your story is probably a no, due to someone probably wanting to make a CS for him at some point.
2) So, in the "Story Overview" section, you've done a great job on how your character got here, but i will need some detail on where your character is going. Some basic "These are the kinds of stories i'm planning to tell with this character"
Apart from that, it's looking good so far.