Hello there, I believe you could enhance your pitch with the following:
- A small Summary of your story, it can be short like a description of a Webtoon Series or Tapas's.
- Amount of chapters you expect your comic to have
- Amount of panels the chapters are going to have
- A portfolio, where to see your art (Not necessarily a storyboard or episode of the comic)
- Do you have documentation such as WorldBuilding, character bios, how the world in your story is, something that the writer could work with?
You said you're looking for a writer, what can you offer a writer in exchange of their services if payment is not a possibility? What could be of interest for them in exchange of helping you?
You also mention that you're looking for a new artist, then... what is your role in this if you're looking for both an artist and a writer? And again, what could there be for an artist in exchange of drawing for you?