Welcome to PJ. Can't wait to see your stuff! Do you write the traditional superhero comic book characters or have you jumped on the zombie craze or do you prefer a different approach to comics as a story-telling venue?
If you want the most feedback for your writing, might I suggest the writing contests? A great tool for not only getting feedback and refining your technical skill, but learning to tell a concise story in as few pages as possible and get into the discipline of writing regularly.
Hope to see you there.