So first off, the writing quality is fine, there is not too much problem with that, the updating quality is very good, tough the size of each chapter is small, so I think you should publish 1 chapter out of two or three small ones. The story development, as for now nothing has had really happened, the protagonist just stayed in his village training and writing, so I expect a quick development of it's quality, what you must do is not make it really fast forward nor too slow, just find the right amount, try get our interest with something like a tension.About the characters names now, don't just put a bit of every anime and make it a story, for example I don't think you should have named the protagonist Roronoa Zoro, it's just sound like someone who is obsessed with that character, same for Artoria, besides what are the chances of a Japanese to be named (with both the family name and the first name) like someone from Europe or Mexico.Then about the paragraph's space, don't make a huge thing, it's very easy to get lost.Finally about the world background, very poor for now so you should really work it from now on.