Reading the descriptions and having the pictures of a few characters (WARNING: THERE BE SPOILERS!), though, and you'd never know. Some of those things are scarily close to my story. I had absolutely NO clue that Madoka (the titular character) used a bow. Her hairstyle is exactly what I've described as Ruby's. Her clothing, now that's closer to being D.D.'s than hers, so there's that, but Sayaka Miki looks a lot like Dark Ruby does, albeit also having the look of Vili.
I swear, I know basically nothing about the show. Never seen an episode. Never seen what the characters looked like. Never knew their powers, nor their weapons. All I knew were the basic facts and those few spoilerific things. Nothing else.
And yet...just...wow, I can't believe how much I'm stealing. Swear it's just a coincidence, though. Like I said, it's physically impossible for me to have done it intentionally. It can't even be in my subconscious because I've never seen it at all, so it's really just a weird coincidence, which I now kinda feel embarrassed about.
Ah, well. My work is mine, and was NOT in any way, shape, nor form inspired by Madoka. Other people are free to make that assumption if they'd like, but they do so to their own error. It's just a weird coincidence of the universe.