I don't recall your application and I'm not going to review it right now, but here's some pointers:
- Stop starting applications with "[John Smith] was born [Month Day, Year] in [Country of Origin] to [Father] and [Mother], a [Father's Profession] and [Mother's Profession]." It's bad writing and it's very tiresome to read so many applications ad nauseam that start with this sentence.
- Stop portraying rebels as these completely heinous sinners who rape, murder, and pillage citizens. Conversely, stop portraying Civil Protection as these excellent and well-trained military soldiers who are incapable of flaws. Do both exist? Perhaps to some degree, but they're characters and living people just as your character should be.
- Generic characters will sometimes get through, but it doesn't hurt to make your character flawed or have personality quirks that make them "bad".
- Stop making blank slates and/or avatars.
- Referencing pre-war material and how it affected your character is good. Only focusing on pre-war material and going through it like a check sheet is bad.
- The applications are designed to check three things: 1) can you write a short story or well enough in English, 2) can you create a character who is close to three-dimensional, and 3) do you understand the history and lore, and can you incorporate elements into your character so they feel like a part of the setting? You should strive to hit all three points, although reviews are heavily subjective, which is why I sometimes let people in if I think they're capable enough.
- It's been ten years since the war. Take this into account when considering how young or old your character is, how they'd respond to being shipped out from city to city completely haphazardly and at random dates, how they'd adjust to this completely different lifestyle (though perhaps fairly reminiscent of pre-war urban centers following the Portal Storms).
- Avoid In-Character and first-person perspective applications. They almost never work.
That should cover most of it. I'm sure there's other things worth noting that are slipping my mind.