This is RainbowMustache22 's OC, Spottedflame.

Name: Spottedflame
We have another Spotted. But that's alright. The her name fits her appearance, and I think the name is cute. Don't change a thing!

Looks: White. One orange ear, one orange paw, and one orange tail tip. Bright green eyes.
Nothing too special about her, right? Plain and simple and cute. I love her look. Keep it the way it is.

Personality: Sweet, but very shy and reserved. Always thinks she has to prove her loyalty.
Flaws. She needs 'em. Maybe since she had kind of a troubled past, you could make her snappy at times, solitary, sensitive, hotheaded, hard to get close to, things like that.

Gender: she-cat
Another. When are we gonna get a tom? Not that I don't like she-cats.

Backstory: Her mother, Moonmist, and her father, Nightstripe, were both exiled from their Clan. Nightstripe was a Shadowclan cat, and Moonmist was Riverclan. The two met and had a kit, but they abused her. They soon left the forest, leaving the kit behind. A ThunderClan cat found her and brought her to the ThunderClan camp. The leader agreed to let her stay as a ThunderClan cat. The kit became known as Spottedkit. A queen and her mate took Spottedkit in and treated her as their own. Spottedkit/paw was always made fun of by the other kits and apprentices for not being Clan-born.
Her backstory isn't too tragic, and I like that. Most OC backstories are. But I just have some questions: did Moonmist and Nightstripe meet after they were exiled, or were they exiled because they were found out? And who were the cats who took Spottedkit in? Anyways, I can see she's a pretty well-thought-out character. Maybe just add a little more detail to her backstory.

Extra: Unnaturally fast
Is there a reason for that?

Cause of death: Drowned
How did she drown? Did another cat ambush her? Did she fall into the lake? What happened?

Mate: none
Forever alone.

Kits: none
Aw, you didn't want them?

Clan: ThunderClan
Another.

Rank: medicine cat
We've got lots of med cats so far!

Afterlife: StarClan
That's obvious.

Overall rating: 8/10
I like her a lot! She's a developed character! Maybe just put some more detail into her backstory to clear things up, add a few flaws, and she's great!