I need someones opinion

So, I have been watching animê for ten years and I amor it so much, So, I decided, for my screenplay career, I want to make animê (Or at least make shows based on anime). Anyway, I have a few ideas, and I just want to know if anyone would like it, or if it has been done before. So, here are a few of my ideas

Big Fist Death angel - So, this is a comedy/action series pointed at teens. It is about a school boy who finds out that he is really a Death Angel. Death anjos are anjos from Heaven who come to Earth to fight demons with odd powers, such as turning your hand into a sword or carrying an object that can turn into whatever you want. The main characters powers allow him to make his fists bigger and allow him to soco anything with no effort and he must use it to fight off an evil demon king coming to Earth to take control over it and make the people of Earth his slaves

Detective Smith - This is a suspense/horror series aimed at young adults. It is about a detective in 1920 Londres who is working with his partner to solve murder crimes, but each of them involve something paranormal, so the main character uses a book called the Book of Paranorm, which is given to only paranormal detectives who solves crimes involving the supernatural

Bullet Blaze - This is an action animê aimed at adults and teens about an assassin in the ano 2525 who, after killing a well known man as a target, he is now being hunted down por dozens of bounty hunters in the galaxy and, with the help of a female assassin, has to figure out who is sending these bounty hunters after him, anyway he can

Six Wing - This is a horror/action animê aimed at adults only about an demon hunting organization named Six Wing, involving six demon hunters, searching for the Twelve Demons of the Eye, which is a powerful group of twelve demons that kill and eat humans and plan to destroy earth to turn it into the new Hell, due to the greedy power of the Eye, which is a powerful crystal that gives anyone gree