The most common question among artist for their CVs is how long should a CV be? Now if you are a good manga artist that means you have a strong portfolio or at least some good work that you can count upon. So a good CV or resume is that shows your true self and your capabilities to the hiring company because they are taking a guess by reading your CVs, so it should be realistic and perfect. A good Cv can be of 1 or 1 and a half page, this is a standard size otherwise you can read this article on how long should a cv be, for more information.
