I'm starting to write a comic book too. My daughter invented a super hero and the name was just so perfect that I felt like I had to expand on it: "Princess Superspeed Girl". I've got like four or five stories written in my head that I've workshopped with her as bedtime stories.
So I'm writing it for my daughter, but I'm kind of a perfectionist and only marginally talented, so it's very slow going.
Anyway, I think you should write yours. The stuff you said about it here doesn't specifically pique my interest, but you were also pretty vague about it, and the execution matters as much as the premise.
It's important to create things. Not just for other people to see it, but for your own sake, just for you to have created it. There's value in that.